src/univ/menu.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/univ/menu.cpp
   3 // Purpose:     wxMenuItem, wxMenu and wxMenuBar implementation
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     25.08.00
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if wxUSE_MENUS
  27
  28 #include "wx/menu.h"
  29 #include "wx/stockitem.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/dynarray.h"
  33     #include "wx/control.h"      // for FindAccelIndex()
  34     #include "wx/settings.h"
  35     #include "wx/accel.h"
  36     #include "wx/log.h"
  37     #include "wx/frame.h"
  38     #include "wx/dcclient.h"
  39 #endif // WX_PRECOMP
  40
  41 #include "wx/popupwin.h"
  42 #include "wx/evtloop.h"
  43
  44 #include "wx/univ/renderer.h"
  45
  46 #ifdef __WXMSW__
  47     #include "wx/msw/private.h"
  48 #endif // __WXMSW__
  49
  50 typedef wxMenuItemList::compatibility_iterator wxMenuItemIter;
  51
  52 // ----------------------------------------------------------------------------
  53 // wxMenuInfo contains all extra information about top level menus we need
  54 // ----------------------------------------------------------------------------
  55
  56 class WXDLLEXPORT wxMenuInfo
  57 {
  58 public:
  59     // ctor
  60     wxMenuInfo(const wxString& text)
  61     {
  62         SetLabel(text);
  63         SetEnabled();
  64     }
  65
  66     // modifiers
  67
  68     void SetLabel(const wxString& text)
  69     {
  70         m_originalLabel = text;
  71
  72         // remember the accel char (may be -1 if none)
  73         m_indexAccel = wxControl::FindAccelIndex(text, &m_label);
  74
  75         // calculate the width later, after the menu bar is created
  76         m_width = 0;
  77     }
  78
  79     void SetEnabled(bool enabled = true) { m_isEnabled = enabled; }
  80
  81     // accessors
  82
  83     const wxString& GetLabel() const { return m_label; }
  84     const wxString& GetOriginalLabel() const { return m_originalLabel; }
  85     bool IsEnabled() const { return m_isEnabled; }
  86     wxCoord GetWidth(wxMenuBar *menubar) const
  87     {
  88         if ( !m_width )
  89         {
  90             wxConstCast(this, wxMenuInfo)->CalcWidth(menubar);
  91         }
  92
  93         return m_width;
  94     }
  95
  96     int GetAccelIndex() const { return m_indexAccel; }
  97
  98 private:
  99     void CalcWidth(wxMenuBar *menubar)
 100     {
 101         wxSize size;
 102         wxClientDC dc(menubar);
 103         dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 104         dc.GetTextExtent(m_label, &size.x, &size.y);
 105
 106         // adjust for the renderer we use and store the width
 107         m_width = menubar->GetRenderer()->GetMenuBarItemSize(size).x;
 108     }
 109
 110     wxString m_label;
 111     wxString m_originalLabel;
 112     wxCoord m_width;
 113     int m_indexAccel;
 114     bool m_isEnabled;
 115 };
 116
 117 #include "wx/arrimpl.cpp"
 118
 119 WX_DEFINE_OBJARRAY(wxMenuInfoArray);
 120
 121 // ----------------------------------------------------------------------------
 122 // wxPopupMenuWindow: a popup window showing a menu
 123 // ----------------------------------------------------------------------------
 124
 125 class wxPopupMenuWindow : public wxPopupTransientWindow
 126 {
 127 public:
 128     wxPopupMenuWindow(wxWindow *parent, wxMenu *menu);
 129
 130     virtual ~wxPopupMenuWindow();
 131
 132     // override the base class version to select the first item initially
 133     virtual void Popup(wxWindow *focus = NULL);
 134
 135     // override the base class version to dismiss any open submenus
 136     virtual void Dismiss();
 137
 138     // called when a submenu is dismissed
 139     void OnSubmenuDismiss(bool dismissParent);
 140
 141     // the default wxMSW wxPopupTransientWindow::OnIdle disables the capture
 142     // when the cursor is inside the popup, which dsables the menu tracking
 143     // so override it to do nothing
 144 #ifdef __WXMSW__
 145     void OnIdle(wxIdleEvent& WXUNUSED(event)) { }
 146 #endif
 147
 148     // get the currently selected item (may be NULL)
 149     wxMenuItem *GetCurrentItem() const
 150     {
 151         return m_nodeCurrent ? m_nodeCurrent->GetData() : NULL;
 152     }
 153
 154     // find the menu item at given position
 155     wxMenuItemIter GetMenuItemFromPoint(const wxPoint& pt) const;
 156
 157     // refresh the given item
 158     void RefreshItem(wxMenuItem *item);
 159
 160     // preselect the first item
 161     void SelectFirst() { SetCurrentItem(m_menu->GetMenuItems().GetFirst()); }
 162
 163     // process the key event, return true if done
 164     bool ProcessKeyDown(int key);
 165
 166     // process mouse move event
 167     void ProcessMouseMove(const wxPoint& pt);
 168
 169     // don't dismiss the popup window if the parent menu was clicked
 170     virtual bool ProcessLeftDown(wxMouseEvent& event);
 171
 172 protected:
 173     // how did we perform this operation?
 174     enum InputMethod
 175     {
 176         WithKeyboard,
 177         WithMouse
 178     };
 179
 180     // notify the menu when the window disappears from screen
 181     virtual void OnDismiss();
 182
 183     // draw the menu inside this window
 184     virtual void DoDraw(wxControlRenderer *renderer);
 185
 186     // event handlers
 187     void OnLeftUp(wxMouseEvent& event);
 188     void OnMouseMove(wxMouseEvent& event);
 189     void OnMouseLeave(wxMouseEvent& event);
 190     void OnKeyDown(wxKeyEvent& event);
 191
 192     // reset the current item and node
 193     void ResetCurrent();
 194
 195     // set the current node and item without refreshing anything
 196     void SetCurrentItem(wxMenuItemIter node);
 197
 198     // change the current item refreshing the old and new items
 199     void ChangeCurrent(wxMenuItemIter node);
 200
 201     // activate item, i.e. call either ClickItem() or OpenSubmenu() depending
 202     // on what it is, return true if something was done (i.e. it's not a
 203     // separator...)
 204     bool ActivateItem(wxMenuItem *item, InputMethod how = WithKeyboard);
 205
 206     // send the event about the item click
 207     void ClickItem(wxMenuItem *item);
 208
 209     // show the submenu for this item
 210     void OpenSubmenu(wxMenuItem *item, InputMethod how = WithKeyboard);
 211
 212     // can this tiem be opened?
 213     bool CanOpen(wxMenuItem *item)
 214     {
 215         return item && item->IsEnabled() && item->IsSubMenu();
 216     }
 217
 218     // dismiss the menu and all parent menus too
 219     void DismissAndNotify();
 220
 221     // react to dimissing this menu and also dismiss the parent if
 222     // dismissParent
 223     void HandleDismiss(bool dismissParent);
 224
 225     // do we have an open submenu?
 226     bool HasOpenSubmenu() const { return m_hasOpenSubMenu; }
 227
 228     // get previous node after the current one
 229     wxMenuItemIter GetPrevNode() const;
 230
 231     // get previous node before the given one, wrapping if it's the first one
 232     wxMenuItemIter GetPrevNode(wxMenuItemIter node) const;
 233
 234     // get next node after the current one
 235     wxMenuItemIter GetNextNode() const;
 236
 237     // get next node after the given one, wrapping if it's the last one
 238     wxMenuItemIter GetNextNode(wxMenuItemIter node) const;
 239
 240 private:
 241     // the menu we show
 242     wxMenu *m_menu;
 243
 244     // the menu node corresponding to the current item
 245     wxMenuItemIter m_nodeCurrent;
 246
 247     // do we currently have an opened submenu?
 248     bool m_hasOpenSubMenu;
 249
 250     DECLARE_EVENT_TABLE()
 251 };
 252
 253 // ----------------------------------------------------------------------------
 254 // wxMenuKbdRedirector: an event handler which redirects kbd input to wxMenu
 255 // ----------------------------------------------------------------------------
 256
 257 class wxMenuKbdRedirector : public wxEvtHandler
 258 {
 259 public:
 260     wxMenuKbdRedirector(wxMenu *menu) { m_menu = menu; }
 261
 262     virtual bool ProcessEvent(wxEvent& event)
 263     {
 264         if ( event.GetEventType() == wxEVT_KEY_DOWN )
 265         {
 266             return m_menu->ProcessKeyDown(((wxKeyEvent &)event).GetKeyCode());
 267         }
 268         else
 269         {
 270             // return false;
 271
 272             return wxEvtHandler::ProcessEvent(event);
 273         }
 274     }
 275
 276 private:
 277     wxMenu *m_menu;
 278 };
 279
 280 // ----------------------------------------------------------------------------
 281 // wxWin macros
 282 // ----------------------------------------------------------------------------
 283
 284 IMPLEMENT_DYNAMIC_CLASS(wxMenu, wxEvtHandler)
 285 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar, wxWindow)
 286 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject)
 287
 288 BEGIN_EVENT_TABLE(wxPopupMenuWindow, wxPopupTransientWindow)
 289     EVT_KEY_DOWN(wxPopupMenuWindow::OnKeyDown)
 290
 291     EVT_LEFT_UP(wxPopupMenuWindow::OnLeftUp)
 292     EVT_MOTION(wxPopupMenuWindow::OnMouseMove)
 293     EVT_LEAVE_WINDOW(wxPopupMenuWindow::OnMouseLeave)
 294 #ifdef __WXMSW__
 295     EVT_IDLE(wxPopupMenuWindow::OnIdle)
 296 #endif
 297 END_EVENT_TABLE()
 298
 299 BEGIN_EVENT_TABLE(wxMenuBar, wxMenuBarBase)
 300     EVT_KILL_FOCUS(wxMenuBar::OnKillFocus)
 301
 302     EVT_KEY_DOWN(wxMenuBar::OnKeyDown)
 303
 304     EVT_LEFT_DOWN(wxMenuBar::OnLeftDown)
 305     EVT_MOTION(wxMenuBar::OnMouseMove)
 306 END_EVENT_TABLE()
 307
 308 // ============================================================================
 309 // implementation
 310 // ============================================================================
 311
 312 // ----------------------------------------------------------------------------
 313 // wxPopupMenuWindow
 314 // ----------------------------------------------------------------------------
 315
 316 wxPopupMenuWindow::wxPopupMenuWindow(wxWindow *parent, wxMenu *menu)
 317 {
 318     m_menu = menu;
 319     m_hasOpenSubMenu = false;
 320
 321     ResetCurrent();
 322
 323     (void)Create(parent, wxBORDER_RAISED);
 324
 325     SetCursor(wxCURSOR_ARROW);
 326 }
 327
 328 wxPopupMenuWindow::~wxPopupMenuWindow()
 329 {
 330     // When m_popupMenu in wxMenu is deleted because it
 331     // is a child of an old menu bar being deleted (note: it does
 332     // not get destroyed by the wxMenu destructor, but
 333     // by DestroyChildren()), m_popupMenu should be reset to NULL.
 334
 335     m_menu->m_popupMenu = NULL;
 336 }
 337
 338 // ----------------------------------------------------------------------------
 339 // wxPopupMenuWindow current item/node handling
 340 // ----------------------------------------------------------------------------
 341
 342 void wxPopupMenuWindow::ResetCurrent()
 343 {
 344     SetCurrentItem(wxMenuItemIter());
 345 }
 346
 347 void wxPopupMenuWindow::SetCurrentItem(wxMenuItemIter node)
 348 {
 349     m_nodeCurrent = node;
 350 }
 351
 352 void wxPopupMenuWindow::ChangeCurrent(wxMenuItemIter node)
 353 {
 354     if ( !m_nodeCurrent || !node || (node != m_nodeCurrent) )
 355     {
 356         wxMenuItemIter nodeOldCurrent = m_nodeCurrent;
 357
 358         m_nodeCurrent = node;
 359
 360         if ( nodeOldCurrent )
 361         {
 362             wxMenuItem *item = nodeOldCurrent->GetData();
 363             wxCHECK_RET( item, _T("no current item?") );
 364
 365             // if it was the currently opened menu, close it
 366             if ( item->IsSubMenu() && item->GetSubMenu()->IsShown() )
 367             {
 368                 item->GetSubMenu()->Dismiss();
 369                 OnSubmenuDismiss( false );
 370             }
 371
 372             RefreshItem(item);
 373         }
 374
 375         if ( m_nodeCurrent )
 376             RefreshItem(m_nodeCurrent->GetData());
 377     }
 378 }
 379
 380 wxMenuItemIter wxPopupMenuWindow::GetPrevNode() const
 381 {
 382     // return the last node if there had been no previously selected one
 383     return m_nodeCurrent ? GetPrevNode(m_nodeCurrent)
 384                          : wxMenuItemIter(m_menu->GetMenuItems().GetLast());
 385 }
 386
 387 wxMenuItemIter
 388 wxPopupMenuWindow::GetPrevNode(wxMenuItemIter node) const
 389 {
 390     if ( node )
 391     {
 392         node = node->GetPrevious();
 393         if ( !node )
 394         {
 395             node = m_menu->GetMenuItems().GetLast();
 396         }
 397     }
 398     //else: the menu is empty
 399
 400     return node;
 401 }
 402
 403 wxMenuItemIter wxPopupMenuWindow::GetNextNode() const
 404 {
 405     // return the first node if there had been no previously selected one
 406     return m_nodeCurrent ? GetNextNode(m_nodeCurrent)
 407                          : wxMenuItemIter(m_menu->GetMenuItems().GetFirst());
 408 }
 409
 410 wxMenuItemIter
 411 wxPopupMenuWindow::GetNextNode(wxMenuItemIter node) const
 412 {
 413     if ( node )
 414     {
 415         node = node->GetNext();
 416         if ( !node )
 417         {
 418             node = m_menu->GetMenuItems().GetFirst();
 419         }
 420     }
 421     //else: the menu is empty
 422
 423     return node;
 424 }
 425
 426 // ----------------------------------------------------------------------------
 427 // wxPopupMenuWindow popup/dismiss
 428 // ----------------------------------------------------------------------------
 429
 430 void wxPopupMenuWindow::Popup(wxWindow *focus)
 431 {
 432     // check that the current item had been properly reset before
 433     wxASSERT_MSG( !m_nodeCurrent ||
 434                   m_nodeCurrent == m_menu->GetMenuItems().GetFirst(),
 435                   _T("menu current item preselected incorrectly") );
 436
 437     wxPopupTransientWindow::Popup(focus);
 438
 439     // the base class no-longer captures the mouse automatically when Popup
 440     // is called, so do it here to allow the menu tracking to work
 441     if ( !HasCapture() )
 442         CaptureMouse();
 443
 444 #ifdef __WXMSW__
 445     // ensure that this window is really on top of everything: without using
 446     // SetWindowPos() it can be covered by its parent menu which is not
 447     // really what we want
 448     wxMenu *menuParent = m_menu->GetParent();
 449     if ( menuParent )
 450     {
 451         wxPopupMenuWindow *win = menuParent->m_popupMenu;
 452
 453         // if we're shown, the parent menu must be also shown
 454         wxCHECK_RET( win, _T("parent menu is not shown?") );
 455
 456         if ( !::SetWindowPos(GetHwndOf(win), GetHwnd(),
 457                              0, 0, 0, 0,
 458                              SWP_NOMOVE | SWP_NOSIZE | SWP_NOREDRAW) )
 459         {
 460             wxLogLastError(_T("SetWindowPos(HWND_TOP)"));
 461         }
 462
 463         Refresh();
 464     }
 465 #endif // __WXMSW__
 466 }
 467
 468 void wxPopupMenuWindow::Dismiss()
 469 {
 470     if ( HasOpenSubmenu() )
 471     {
 472         wxMenuItem *item = GetCurrentItem();
 473         wxCHECK_RET( item && item->IsSubMenu(), _T("where is our open submenu?") );
 474
 475         wxPopupMenuWindow *win = item->GetSubMenu()->m_popupMenu;
 476         wxCHECK_RET( win, _T("opened submenu is not opened?") );
 477
 478         win->Dismiss();
 479         OnSubmenuDismiss( false );
 480     }
 481
 482     wxPopupTransientWindow::Dismiss();
 483
 484     ResetCurrent();
 485 }
 486
 487 void wxPopupMenuWindow::OnDismiss()
 488 {
 489     // when we are dismissed because the user clicked elsewhere or we lost
 490     // focus in any other way, hide the parent menu as well
 491     HandleDismiss(true);
 492 }
 493
 494 void wxPopupMenuWindow::OnSubmenuDismiss(bool WXUNUSED(dismissParent))
 495 {
 496     m_hasOpenSubMenu = false;
 497 }
 498
 499 void wxPopupMenuWindow::HandleDismiss(bool dismissParent)
 500 {
 501     m_menu->OnDismiss(dismissParent);
 502 }
 503
 504 void wxPopupMenuWindow::DismissAndNotify()
 505 {
 506     Dismiss();
 507     HandleDismiss(true);
 508 }
 509
 510 // ----------------------------------------------------------------------------
 511 // wxPopupMenuWindow geometry
 512 // ----------------------------------------------------------------------------
 513
 514 wxMenuItemIter
 515 wxPopupMenuWindow::GetMenuItemFromPoint(const wxPoint& pt) const
 516 {
 517     // we only use the y coord normally, but still check x in case the point is
 518     // outside the window completely
 519     if ( wxWindow::HitTest(pt) == wxHT_WINDOW_INSIDE )
 520     {
 521         wxCoord y = 0;
 522         for ( wxMenuItemIter node = m_menu->GetMenuItems().GetFirst();
 523               node;
 524               node = node->GetNext() )
 525         {
 526             wxMenuItem *item = node->GetData();
 527             y += item->GetHeight();
 528             if ( y > pt.y )
 529             {
 530                 // found
 531                 return node;
 532             }
 533         }
 534     }
 535
 536     return wxMenuItemIter();
 537 }
 538
 539 // ----------------------------------------------------------------------------
 540 // wxPopupMenuWindow drawing
 541 // ----------------------------------------------------------------------------
 542
 543 void wxPopupMenuWindow::RefreshItem(wxMenuItem *item)
 544 {
 545     wxCHECK_RET( item, _T("can't refresh NULL item") );
 546
 547     wxASSERT_MSG( IsShown(), _T("can't refresh menu which is not shown") );
 548
 549     // FIXME: -1 here because of SetLogicalOrigin(1, 1) in DoDraw()
 550     RefreshRect(wxRect(0, item->GetPosition() - 1,
 551                 m_menu->GetGeometryInfo().GetSize().x, item->GetHeight()));
 552 }
 553
 554 void wxPopupMenuWindow::DoDraw(wxControlRenderer *renderer)
 555 {
 556     // no clipping so far - do we need it? I don't think so as the menu is
 557     // never partially covered as it is always on top of everything
 558
 559     wxDC& dc = renderer->GetDC();
 560     dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 561
 562     // FIXME: this should be done in the renderer, however when it is fixed
 563     //        wxPopupMenuWindow::RefreshItem() should be changed too!
 564     dc.SetLogicalOrigin(1, 1);
 565
 566     wxRenderer *rend = renderer->GetRenderer();
 567
 568     wxCoord y = 0;
 569     const wxMenuGeometryInfo& gi = m_menu->GetGeometryInfo();
 570     for ( wxMenuItemIter node = m_menu->GetMenuItems().GetFirst();
 571           node;
 572           node = node->GetNext() )
 573     {
 574         wxMenuItem *item = node->GetData();
 575
 576         if ( item->IsSeparator() )
 577         {
 578             rend->DrawMenuSeparator(dc, y, gi);
 579         }
 580         else // not a separator
 581         {
 582             int flags = 0;
 583             if ( item->IsCheckable() )
 584             {
 585                 flags |= wxCONTROL_CHECKABLE;
 586
 587                 if ( item->IsChecked() )
 588                 {
 589                     flags |= wxCONTROL_CHECKED;
 590                 }
 591             }
 592
 593             if ( !item->IsEnabled() )
 594                 flags |= wxCONTROL_DISABLED;
 595
 596             if ( item->IsSubMenu() )
 597                 flags |= wxCONTROL_ISSUBMENU;
 598
 599             if ( item == GetCurrentItem() )
 600                 flags |= wxCONTROL_SELECTED;
 601
 602             wxBitmap bmp;
 603
 604             if ( !item->IsEnabled() )
 605             {
 606                 bmp = item->GetDisabledBitmap();
 607             }
 608
 609             if ( !bmp.Ok() )
 610             {
 611                 // strangely enough, for unchecked item we use the
 612                 // "checked" bitmap because this is the default one - this
 613                 // explains this strange boolean expression
 614                 bmp = item->GetBitmap(!item->IsCheckable() || item->IsChecked());
 615             }
 616
 617             rend->DrawMenuItem
 618                   (
 619                      dc,
 620                      y,
 621                      gi,
 622                      item->GetItemLabelText(),
 623                      item->GetAccelString(),
 624                      bmp,
 625                      flags,
 626                      item->GetAccelIndex()
 627                   );
 628         }
 629
 630         y += item->GetHeight();
 631     }
 632 }
 633
 634 // ----------------------------------------------------------------------------
 635 // wxPopupMenuWindow actions
 636 // ----------------------------------------------------------------------------
 637
 638 void wxPopupMenuWindow::ClickItem(wxMenuItem *item)
 639 {
 640     wxCHECK_RET( item, _T("can't click NULL item") );
 641
 642     wxASSERT_MSG( !item->IsSeparator() && !item->IsSubMenu(),
 643                   _T("can't click this item") );
 644
 645     wxMenu* menu = m_menu;
 646
 647     // close all menus
 648     DismissAndNotify();
 649
 650     menu->ClickItem(item);
 651 }
 652
 653 void wxPopupMenuWindow::OpenSubmenu(wxMenuItem *item, InputMethod how)
 654 {
 655     wxCHECK_RET( item, _T("can't open NULL submenu") );
 656
 657     wxMenu *submenu = item->GetSubMenu();
 658     wxCHECK_RET( submenu, _T("can only open submenus!") );
 659
 660     // FIXME: should take into account the border width
 661     submenu->Popup(ClientToScreen(wxPoint(0, item->GetPosition())),
 662                    wxSize(m_menu->GetGeometryInfo().GetSize().x, 0),
 663                    how == WithKeyboard /* preselect first item then */);
 664
 665     m_hasOpenSubMenu = true;
 666 }
 667
 668 bool wxPopupMenuWindow::ActivateItem(wxMenuItem *item, InputMethod how)
 669 {
 670     // don't activate disabled items
 671     if ( !item || !item->IsEnabled() )
 672     {
 673         return false;
 674     }
 675
 676     // normal menu items generate commands, submenus can be opened and
 677     // the separators don't do anything
 678     if ( item->IsSubMenu() )
 679     {
 680         OpenSubmenu(item, how);
 681     }
 682     else if ( !item->IsSeparator() )
 683     {
 684         ClickItem(item);
 685     }
 686     else // separator, can't activate
 687     {
 688         return false;
 689     }
 690
 691     return true;
 692 }
 693
 694 // ----------------------------------------------------------------------------
 695 // wxPopupMenuWindow input handling
 696 // ----------------------------------------------------------------------------
 697
 698 bool wxPopupMenuWindow::ProcessLeftDown(wxMouseEvent& event)
 699 {
 700     // wxPopupWindowHandler dismisses the window when the mouse is clicked
 701     // outside it which is usually just fine, but there is one case when we
 702     // don't want to do it: if the mouse was clicked on the parent submenu item
 703     // which opens this menu, so check for it
 704
 705     wxPoint pos = event.GetPosition();
 706     if ( HitTest(pos.x, pos.y) == wxHT_WINDOW_OUTSIDE )
 707     {
 708         wxMenu *menu = m_menu->GetParent();
 709         if ( menu )
 710         {
 711             wxPopupMenuWindow *win = menu->m_popupMenu;
 712
 713             wxCHECK_MSG( win, false, _T("parent menu not shown?") );
 714
 715             pos = ClientToScreen(pos);
 716             if ( win->GetMenuItemFromPoint(win->ScreenToClient(pos)) )
 717             {
 718                 // eat the event
 719                 return true;
 720             }
 721             //else: it is outside the parent menu as well, do dismiss this one
 722         }
 723     }
 724
 725     return false;
 726 }
 727
 728 void wxPopupMenuWindow::OnLeftUp(wxMouseEvent& event)
 729 {
 730     wxMenuItemIter node = GetMenuItemFromPoint(event.GetPosition());
 731     if ( node )
 732     {
 733         ActivateItem(node->GetData(), WithMouse);
 734     }
 735 }
 736
 737 void wxPopupMenuWindow::OnMouseMove(wxMouseEvent& event)
 738 {
 739     const wxPoint pt = event.GetPosition();
 740
 741     // we need to ignore extra mouse events: example when this happens is when
 742     // the mouse is on the menu and we open a submenu from keyboard - Windows
 743     // then sends us a dummy mouse move event, we (correctly) determine that it
 744     // happens in the parent menu and so immediately close the just opened
 745     // submenu!
 746 #ifdef __WXMSW__
 747     static wxPoint s_ptLast;
 748     wxPoint ptCur = ClientToScreen(pt);
 749     if ( ptCur == s_ptLast )
 750     {
 751         return;
 752     }
 753
 754     s_ptLast = ptCur;
 755 #endif // __WXMSW__
 756
 757     ProcessMouseMove(pt);
 758
 759     event.Skip();
 760 }
 761
 762 void wxPopupMenuWindow::ProcessMouseMove(const wxPoint& pt)
 763 {
 764     wxMenuItemIter node = GetMenuItemFromPoint(pt);
 765
 766     // don't reset current to NULL here, we only do it when the mouse leaves
 767     // the window (see below)
 768     if ( node )
 769     {
 770         if ( !m_nodeCurrent || (node != m_nodeCurrent) )
 771         {
 772             ChangeCurrent(node);
 773
 774             wxMenuItem *item = GetCurrentItem();
 775             if ( CanOpen(item) )
 776             {
 777                 OpenSubmenu(item, WithMouse);
 778             }
 779         }
 780         //else: same item, nothing to do
 781     }
 782     else // not on an item
 783     {
 784         // the last open submenu forwards the mouse move messages to its
 785         // parent, so if the mouse moves to another item of the parent menu,
 786         // this menu is closed and this other item is selected - in the similar
 787         // manner, the top menu forwards the mouse moves to the menubar which
 788         // allows to select another top level menu by just moving the mouse
 789
 790         // we need to translate our client coords to the client coords of the
 791         // window we forward this event to
 792         wxPoint ptScreen = ClientToScreen(pt);
 793
 794         // if the mouse is outside this menu, let the parent one to
 795         // process it
 796         wxMenu *menuParent = m_menu->GetParent();
 797         if ( menuParent )
 798         {
 799             wxPopupMenuWindow *win = menuParent->m_popupMenu;
 800
 801             // if we're shown, the parent menu must be also shown
 802             wxCHECK_RET( win, _T("parent menu is not shown?") );
 803
 804             win->ProcessMouseMove(win->ScreenToClient(ptScreen));
 805         }
 806         else // no parent menu
 807         {
 808             wxMenuBar *menubar = m_menu->GetMenuBar();
 809             if ( menubar )
 810             {
 811                 if ( menubar->ProcessMouseEvent(
 812                             menubar->ScreenToClient(ptScreen)) )
 813                 {
 814                     // menubar has closed this menu and opened another one, probably
 815                     return;
 816                 }
 817             }
 818         }
 819         //else: top level popup menu, no other processing to do
 820     }
 821 }
 822
 823 void wxPopupMenuWindow::OnMouseLeave(wxMouseEvent& event)
 824 {
 825     // due to the artefact of mouse events generation under MSW, we actually
 826     // may get the mouse leave event after the menu had been already dismissed
 827     // and calling ChangeCurrent() would then assert, so don't do it
 828     if ( IsShown() )
 829     {
 830         // we shouldn't change the current them if our submenu is opened and
 831         // mouse moved there, in this case the submenu is responsable for
 832         // handling it
 833         bool resetCurrent;
 834         if ( HasOpenSubmenu() )
 835         {
 836             wxMenuItem *item = GetCurrentItem();
 837             wxCHECK_RET( CanOpen(item), _T("where is our open submenu?") );
 838
 839             wxPopupMenuWindow *win = item->GetSubMenu()->m_popupMenu;
 840             wxCHECK_RET( win, _T("submenu is opened but not shown?") );
 841
 842             // only handle this event if the mouse is not inside the submenu
 843             wxPoint pt = ClientToScreen(event.GetPosition());
 844             resetCurrent =
 845                 win->HitTest(win->ScreenToClient(pt)) == wxHT_WINDOW_OUTSIDE;
 846         }
 847         else
 848         {
 849             // this menu is the last opened
 850             resetCurrent = true;
 851         }
 852
 853         if ( resetCurrent )
 854         {
 855             ChangeCurrent(wxMenuItemIter());
 856         }
 857     }
 858
 859     event.Skip();
 860 }
 861
 862 void wxPopupMenuWindow::OnKeyDown(wxKeyEvent& event)
 863 {
 864     wxMenuBar *menubar = m_menu->GetMenuBar();
 865
 866     if ( menubar )
 867     {
 868         menubar->ProcessEvent(event);
 869     }
 870     else if ( !ProcessKeyDown(event.GetKeyCode()) )
 871     {
 872         event.Skip();
 873     }
 874 }
 875
 876 bool wxPopupMenuWindow::ProcessKeyDown(int key)
 877 {
 878     wxMenuItem *item = GetCurrentItem();
 879
 880     // first let the opened submenu to have it (no test for IsEnabled() here,
 881     // the keys navigate even in a disabled submenu if we had somehow managed
 882     // to open it inspit of this)
 883     if ( HasOpenSubmenu() )
 884     {
 885         wxCHECK_MSG( CanOpen(item), false,
 886                      _T("has open submenu but another item selected?") );
 887
 888         if ( item->GetSubMenu()->ProcessKeyDown(key) )
 889             return true;
 890     }
 891
 892     bool processed = true;
 893
 894     // handle the up/down arrows, home, end, esc and return here, pass the
 895     // left/right arrows to the menu bar except when the right arrow can be
 896     // used to open a submenu
 897     switch ( key )
 898     {
 899         case WXK_LEFT:
 900             // if we're not a top level menu, close us, else leave this to the
 901             // menubar
 902             if ( !m_menu->GetParent() )
 903             {
 904                 processed = false;
 905                 break;
 906             }
 907
 908             // fall through
 909
 910         case WXK_ESCAPE:
 911             // close just this menu
 912             Dismiss();
 913             HandleDismiss(false);
 914             break;
 915
 916         case WXK_RETURN:
 917             processed = ActivateItem(item);
 918             break;
 919
 920         case WXK_HOME:
 921             ChangeCurrent(m_menu->GetMenuItems().GetFirst());
 922             break;
 923
 924         case WXK_END:
 925             ChangeCurrent(m_menu->GetMenuItems().GetLast());
 926             break;
 927
 928         case WXK_UP:
 929         case WXK_DOWN:
 930             {
 931                 bool up = key == WXK_UP;
 932
 933                 wxMenuItemIter nodeStart = up ? GetPrevNode() : GetNextNode(),
 934                                node = nodeStart;
 935                 while ( node && node->GetData()->IsSeparator() )
 936                 {
 937                     node = up ? GetPrevNode(node) : GetNextNode(node);
 938
 939                     if ( node == nodeStart )
 940                     {
 941                         // nothing but separators and disabled items in this
 942                         // menu, break out
 943                         node = wxMenuItemIter();
 944                     }
 945                 }
 946
 947                 if ( node )
 948                 {
 949                     ChangeCurrent(node);
 950                 }
 951                 else
 952                 {
 953                     processed = false;
 954                 }
 955             }
 956             break;
 957
 958         case WXK_RIGHT:
 959             // don't try to reopen an already opened menu
 960             if ( !HasOpenSubmenu() && CanOpen(item) )
 961             {
 962                 OpenSubmenu(item);
 963             }
 964             else
 965             {
 966                 processed = false;
 967             }
 968             break;
 969
 970         default:
 971             // look for the menu item starting with this letter
 972             if ( wxIsalnum((wxChar)key) )
 973             {
 974                 // we want to start from the item after this one because
 975                 // if we're already on the item with the given accel we want to
 976                 // go to the next one, not to stay in place
 977                 wxMenuItemIter nodeStart = GetNextNode();
 978
 979                 // do we have more than one item with this accel?
 980                 bool notUnique = false;
 981
 982                 // translate everything to lower case before comparing
 983                 wxChar chAccel = (wxChar)wxTolower(key);
 984
 985                 // loop through all items searching for the item with this
 986                 // accel
 987                 wxMenuItemIter nodeFound,
 988                                node = nodeStart;
 989                 for ( ;; )
 990                 {
 991                     item = node->GetData();
 992
 993                     int idxAccel = item->GetAccelIndex();
 994                     if ( idxAccel != -1 &&
 995                          (wxChar)wxTolower(item->GetItemLabelText()[(size_t)idxAccel])
 996                             == chAccel )
 997                     {
 998                         // ok, found an item with this accel
 999                         if ( !nodeFound )
1000                         {
1001                             // store it but continue searching as we need to
1002                             // know if it's the only item with this accel or if
1003                             // there are more
1004                             nodeFound = node;
1005                         }
1006                         else // we already had found such item
1007                         {
1008                             notUnique = true;
1009
1010                             // no need to continue further, we won't find
1011                             // anything we don't already know
1012                             break;
1013                         }
1014                     }
1015
1016                     // we want to iterate over all items wrapping around if
1017                     // necessary
1018                     node = GetNextNode(node);
1019                     if ( node == nodeStart )
1020                     {
1021                         // we've seen all nodes
1022                         break;
1023                     }
1024                 }
1025
1026                 if ( nodeFound )
1027                 {
1028                     item = nodeFound->GetData();
1029
1030                     // go to this item anyhow
1031                     ChangeCurrent(nodeFound);
1032
1033                     if ( !notUnique && item->IsEnabled() )
1034                     {
1035                         // unique item with this accel - activate it
1036                         processed = ActivateItem(item);
1037                     }
1038                     //else: just select it but don't activate as the user might
1039                     //      have wanted to activate another item
1040
1041                     // skip "processed = false" below
1042                     break;
1043                 }
1044             }
1045
1046             processed = false;
1047     }
1048
1049     return processed;
1050 }
1051
1052 // ----------------------------------------------------------------------------
1053 // wxMenu
1054 // ----------------------------------------------------------------------------
1055
1056 void wxMenu::Init()
1057 {
1058     m_geometry = NULL;
1059
1060     m_popupMenu = NULL;
1061
1062     m_startRadioGroup = -1;
1063 }
1064
1065 wxMenu::~wxMenu()
1066 {
1067     delete m_geometry;
1068     delete m_popupMenu;
1069 }
1070
1071 // ----------------------------------------------------------------------------
1072 // wxMenu and wxMenuGeometryInfo
1073 // ----------------------------------------------------------------------------
1074
1075 wxMenuGeometryInfo::~wxMenuGeometryInfo()
1076 {
1077 }
1078
1079 const wxMenuGeometryInfo& wxMenu::GetGeometryInfo() const
1080 {
1081     if ( !m_geometry )
1082     {
1083         if ( m_popupMenu )
1084         {
1085             wxConstCast(this, wxMenu)->m_geometry =
1086                 m_popupMenu->GetRenderer()->GetMenuGeometry(m_popupMenu, *this);
1087         }
1088         else
1089         {
1090             wxFAIL_MSG( _T("can't get geometry without window") );
1091         }
1092     }
1093
1094     return *m_geometry;
1095 }
1096
1097 void wxMenu::InvalidateGeometryInfo()
1098 {
1099     if ( m_geometry )
1100     {
1101         delete m_geometry;
1102         m_geometry = NULL;
1103     }
1104 }
1105
1106 // ----------------------------------------------------------------------------
1107 // wxMenu adding/removing items
1108 // ----------------------------------------------------------------------------
1109
1110 void wxMenu::OnItemAdded(wxMenuItem *item)
1111 {
1112     InvalidateGeometryInfo();
1113
1114 #if wxUSE_ACCEL
1115     AddAccelFor(item);
1116 #endif // wxUSE_ACCEL
1117
1118     // the submenus of a popup menu should have the same invoking window as it
1119     // has
1120     if ( m_invokingWindow && item->IsSubMenu() )
1121     {
1122         item->GetSubMenu()->SetInvokingWindow(m_invokingWindow);
1123     }
1124 }
1125
1126 void wxMenu::EndRadioGroup()
1127 {
1128     // we're not inside a radio group any longer
1129     m_startRadioGroup = -1;
1130 }
1131
1132 wxMenuItem* wxMenu::DoAppend(wxMenuItem *item)
1133 {
1134     if ( item->GetKind() == wxITEM_RADIO )
1135     {
1136         int count = GetMenuItemCount();
1137
1138         if ( m_startRadioGroup == -1 )
1139         {
1140             // start a new radio group
1141             m_startRadioGroup = count;
1142
1143             // for now it has just one element
1144             item->SetAsRadioGroupStart();
1145             item->SetRadioGroupEnd(m_startRadioGroup);
1146         }
1147         else // extend the current radio group
1148         {
1149             // we need to update its end item
1150             item->SetRadioGroupStart(m_startRadioGroup);
1151             wxMenuItemIter node = GetMenuItems().Item(m_startRadioGroup);
1152
1153             if ( node )
1154             {
1155                 node->GetData()->SetRadioGroupEnd(count);
1156             }
1157             else
1158             {
1159                 wxFAIL_MSG( _T("where is the radio group start item?") );
1160             }
1161         }
1162     }
1163     else // not a radio item
1164     {
1165         EndRadioGroup();
1166     }
1167
1168     if ( !wxMenuBase::DoAppend(item) )
1169         return NULL;
1170
1171     OnItemAdded(item);
1172
1173     return item;
1174 }
1175
1176 wxMenuItem* wxMenu::DoInsert(size_t pos, wxMenuItem *item)
1177 {
1178     if ( !wxMenuBase::DoInsert(pos, item) )
1179         return NULL;
1180
1181     OnItemAdded(item);
1182
1183     return item;
1184 }
1185
1186 wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
1187 {
1188     wxMenuItem *itemOld = wxMenuBase::DoRemove(item);
1189
1190     if ( itemOld )
1191     {
1192         InvalidateGeometryInfo();
1193
1194 #if wxUSE_ACCEL
1195         RemoveAccelFor(item);
1196 #endif // wxUSE_ACCEL
1197     }
1198
1199     return itemOld;
1200 }
1201
1202 // ----------------------------------------------------------------------------
1203 // wxMenu attaching/detaching
1204 // ----------------------------------------------------------------------------
1205
1206 void wxMenu::Attach(wxMenuBarBase *menubar)
1207 {
1208     wxMenuBase::Attach(menubar);
1209
1210     wxCHECK_RET( m_menuBar, _T("menubar can't be NULL after attaching") );
1211
1212     // unfortunately, we can't use m_menuBar->GetEventHandler() here because,
1213     // if the menubar is currently showing a menu, its event handler is a
1214     // temporary one installed by wxPopupWindow and so will disappear soon any
1215     // any attempts to use it from the newly attached menu would result in a
1216     // crash
1217     //
1218     // so we use the menubar itself, even if it's a pity as it means we can't
1219     // redirect all menu events by changing the menubar handler (FIXME)
1220     SetNextHandler(m_menuBar);
1221 }
1222
1223 void wxMenu::Detach()
1224 {
1225     wxMenuBase::Detach();
1226 }
1227
1228 // ----------------------------------------------------------------------------
1229 // wxMenu misc functions
1230 // ----------------------------------------------------------------------------
1231
1232 wxWindow *wxMenu::GetRootWindow() const
1233 {
1234     if ( GetMenuBar() )
1235     {
1236         // simple case - a normal menu attached to the menubar
1237         return GetMenuBar();
1238     }
1239
1240     // we're a popup menu but the trouble is that only the top level popup menu
1241     // has a pointer to the invoking window, so we must walk up the menu chain
1242     // if needed
1243     wxWindow *win = GetInvokingWindow();
1244     if ( win )
1245     {
1246         // we already have it
1247         return win;
1248     }
1249
1250     wxMenu *menu = GetParent();
1251     while ( menu )
1252     {
1253         // We are a submenu of a menu of a menubar
1254         if (menu->GetMenuBar())
1255            return menu->GetMenuBar();
1256
1257         win = menu->GetInvokingWindow();
1258         if ( win )
1259             break;
1260
1261         menu = menu->GetParent();
1262     }
1263
1264     // we're probably going to crash in the caller anyhow, but try to detect
1265     // this error as soon as possible
1266     wxASSERT_MSG( win, _T("menu without any associated window?") );
1267
1268     // also remember it in this menu so that we don't have to search for it the
1269     // next time
1270     wxConstCast(this, wxMenu)->m_invokingWindow = win;
1271
1272     return win;
1273 }
1274
1275 wxRenderer *wxMenu::GetRenderer() const
1276 {
1277     // we're going to crash without renderer!
1278     wxCHECK_MSG( m_popupMenu, NULL, _T("neither popup nor menubar menu?") );
1279
1280     return m_popupMenu->GetRenderer();
1281 }
1282
1283 void wxMenu::RefreshItem(wxMenuItem *item)
1284 {
1285     // the item geometry changed, so our might have changed as well
1286     InvalidateGeometryInfo();
1287
1288     if ( IsShown() )
1289     {
1290         // this would be a bug in IsShown()
1291         wxCHECK_RET( m_popupMenu, _T("must have popup window if shown!") );
1292
1293         // recalc geometry to update the item height and such
1294         (void)GetGeometryInfo();
1295
1296         m_popupMenu->RefreshItem(item);
1297     }
1298 }
1299
1300 // ----------------------------------------------------------------------------
1301 // wxMenu showing and hiding
1302 // ----------------------------------------------------------------------------
1303
1304 bool wxMenu::IsShown() const
1305 {
1306     return m_popupMenu && m_popupMenu->IsShown();
1307 }
1308
1309 void wxMenu::OnDismiss(bool dismissParent)
1310 {
1311     if ( m_menuParent )
1312     {
1313         // always notify the parent about submenu disappearance
1314         wxPopupMenuWindow *win = m_menuParent->m_popupMenu;
1315         if ( win )
1316         {
1317             win->OnSubmenuDismiss( true );
1318         }
1319         else
1320         {
1321             wxFAIL_MSG( _T("parent menu not shown?") );
1322         }
1323
1324         // and if we dismiss everything, propagate to parent
1325         if ( dismissParent )
1326         {
1327             // dismissParent is recursive
1328             m_menuParent->Dismiss();
1329             m_menuParent->OnDismiss(true);
1330         }
1331     }
1332     else // no parent menu
1333     {
1334         // notify the menu bar if we're a top level menu
1335         if ( m_menuBar )
1336         {
1337             m_menuBar->OnDismissMenu(dismissParent);
1338         }
1339         else // popup menu
1340         {
1341             wxCHECK_RET( m_invokingWindow, _T("what kind of menu is this?") );
1342
1343             m_invokingWindow->DismissPopupMenu();
1344
1345             // Why reset it here? We need it for sending the event to...
1346             // SetInvokingWindow(NULL);
1347         }
1348     }
1349 }
1350
1351 void wxMenu::Popup(const wxPoint& pos, const wxSize& size, bool selectFirst)
1352 {
1353     // create the popup window if not done yet
1354     if ( !m_popupMenu )
1355     {
1356         m_popupMenu = new wxPopupMenuWindow(GetRootWindow(), this);
1357     }
1358
1359     // select the first item unless disabled
1360     if ( selectFirst )
1361     {
1362         m_popupMenu->SelectFirst();
1363     }
1364
1365     // the geometry might have changed since the last time we were shown, so
1366     // always resize
1367     m_popupMenu->SetClientSize(GetGeometryInfo().GetSize());
1368
1369     // position it as specified
1370     m_popupMenu->Position(pos, size);
1371
1372     // the menu can't have the focus itself (it is a Windows limitation), so
1373     // always keep the focus at the originating window
1374     wxWindow *focus = GetRootWindow();
1375
1376     wxASSERT_MSG( focus, _T("no window to keep focus on?") );
1377
1378     // and show it
1379     m_popupMenu->Popup(focus);
1380 }
1381
1382 void wxMenu::Dismiss()
1383 {
1384     wxCHECK_RET( IsShown(), _T("can't dismiss hidden menu") );
1385
1386     m_popupMenu->Dismiss();
1387 }
1388
1389 // ----------------------------------------------------------------------------
1390 // wxMenu event processing
1391 // ----------------------------------------------------------------------------
1392
1393 bool wxMenu::ProcessKeyDown(int key)
1394 {
1395     wxCHECK_MSG( m_popupMenu, false,
1396                  _T("can't process key events if not shown") );
1397
1398     return m_popupMenu->ProcessKeyDown(key);
1399 }
1400
1401 bool wxMenu::ClickItem(wxMenuItem *item)
1402 {
1403     int isChecked;
1404     if ( item->IsCheckable() )
1405     {
1406         // update the item state
1407         isChecked = !item->IsChecked();
1408
1409         item->Check(isChecked != 0);
1410     }
1411     else
1412     {
1413         // not applicabled
1414         isChecked = -1;
1415     }
1416
1417     return SendEvent(item->GetId(), isChecked);
1418 }
1419
1420 // ----------------------------------------------------------------------------
1421 // wxMenu accel support
1422 // ----------------------------------------------------------------------------
1423
1424 #if wxUSE_ACCEL
1425
1426 bool wxMenu::ProcessAccelEvent(const wxKeyEvent& event)
1427 {
1428     // do we have an item for this accel?
1429     wxMenuItem *item = m_accelTable.GetMenuItem(event);
1430     if ( item && item->IsEnabled() )
1431     {
1432         return ClickItem(item);
1433     }
1434
1435     // try our submenus
1436     for ( wxMenuItemIter node = GetMenuItems().GetFirst();
1437           node;
1438           node = node->GetNext() )
1439     {
1440         const wxMenuItem *item = node->GetData();
1441         if ( item->IsSubMenu() && item->IsEnabled() )
1442         {
1443             // try its elements
1444             if ( item->GetSubMenu()->ProcessAccelEvent(event) )
1445             {
1446                 return true;
1447             }
1448         }
1449     }
1450
1451     return false;
1452 }
1453
1454 void wxMenu::AddAccelFor(wxMenuItem *item)
1455 {
1456     wxAcceleratorEntry *accel = item->GetAccel();
1457     if ( accel )
1458     {
1459         accel->SetMenuItem(item);
1460
1461         m_accelTable.Add(*accel);
1462
1463         delete accel;
1464     }
1465 }
1466
1467 void wxMenu::RemoveAccelFor(wxMenuItem *item)
1468 {
1469     wxAcceleratorEntry *accel = item->GetAccel();
1470     if ( accel )
1471     {
1472         m_accelTable.Remove(*accel);
1473
1474         delete accel;
1475     }
1476 }
1477
1478 #endif // wxUSE_ACCEL
1479
1480 // ----------------------------------------------------------------------------
1481 // wxMenuItem construction
1482 // ----------------------------------------------------------------------------
1483
1484 wxMenuItem::wxMenuItem(wxMenu *parentMenu,
1485                        int id,
1486                        const wxString& text,
1487                        const wxString& help,
1488                        wxItemKind kind,
1489                        wxMenu *subMenu)
1490           : wxMenuItemBase(parentMenu, id, text, help, kind, subMenu)
1491 {
1492     m_posY =
1493     m_height = wxDefaultCoord;
1494
1495     m_radioGroup.start = -1;
1496     m_isRadioGroupStart = false;
1497
1498     m_bmpDisabled = wxNullBitmap;
1499
1500     UpdateAccelInfo();
1501 }
1502
1503 wxMenuItem::~wxMenuItem()
1504 {
1505 }
1506
1507 // ----------------------------------------------------------------------------
1508 // wxMenuItemBase methods implemented here
1509 // ----------------------------------------------------------------------------
1510
1511 /* static */
1512 wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu,
1513                                 int id,
1514                                 const wxString& name,
1515                                 const wxString& help,
1516                                 wxItemKind kind,
1517                                 wxMenu *subMenu)
1518 {
1519     return new wxMenuItem(parentMenu, id, name, help, kind, subMenu);
1520 }
1521
1522 // ----------------------------------------------------------------------------
1523 // wxMenuItem operations
1524 // ----------------------------------------------------------------------------
1525
1526 void wxMenuItem::NotifyMenu()
1527 {
1528     m_parentMenu->RefreshItem(this);
1529 }
1530
1531 void wxMenuItem::UpdateAccelInfo()
1532 {
1533     m_indexAccel = wxControl::FindAccelIndex(m_text);
1534
1535     // will be empty if the text contains no TABs - ok
1536     m_strAccel = m_text.AfterFirst(_T('\t'));
1537 }
1538
1539 void wxMenuItem::SetItemLabel(const wxString& text)
1540 {
1541     if ( text != m_text )
1542     {
1543         // first call the base class version to change m_text
1544         // (and also check if we don't have a stock menu item)
1545         wxMenuItemBase::SetItemLabel(text);
1546
1547         UpdateAccelInfo();
1548
1549         NotifyMenu();
1550     }
1551 }
1552
1553 void wxMenuItem::SetCheckable(bool checkable)
1554 {
1555     if ( checkable != IsCheckable() )
1556     {
1557         wxMenuItemBase::SetCheckable(checkable);
1558
1559         NotifyMenu();
1560     }
1561 }
1562
1563 void wxMenuItem::SetBitmaps(const wxBitmap& bmpChecked,
1564                             const wxBitmap& bmpUnchecked)
1565 {
1566     m_bmpChecked = bmpChecked;
1567     m_bmpUnchecked = bmpUnchecked;
1568
1569     NotifyMenu();
1570 }
1571
1572 void wxMenuItem::Enable(bool enable)
1573 {
1574     if ( enable != m_isEnabled )
1575     {
1576         wxMenuItemBase::Enable(enable);
1577
1578         NotifyMenu();
1579     }
1580 }
1581
1582 void wxMenuItem::Check(bool check)
1583 {
1584     wxCHECK_RET( IsCheckable(), wxT("only checkable items may be checked") );
1585
1586     if ( m_isChecked == check )
1587         return;
1588
1589     if ( GetKind() == wxITEM_RADIO )
1590     {
1591         // it doesn't make sense to uncheck a radio item - what would this do?
1592         if ( !check )
1593             return;
1594
1595         // get the index of this item in the menu
1596         const wxMenuItemList& items = m_parentMenu->GetMenuItems();
1597         int pos = items.IndexOf(this);
1598         wxCHECK_RET( pos != wxNOT_FOUND,
1599                      _T("menuitem not found in the menu items list?") );
1600
1601         // get the radio group range
1602         int start,
1603             end;
1604
1605         if ( m_isRadioGroupStart )
1606         {
1607             // we already have all information we need
1608             start = pos;
1609             end = m_radioGroup.end;
1610         }
1611         else // next radio group item
1612         {
1613             // get the radio group end from the start item
1614             start = m_radioGroup.start;
1615             end = items.Item(start)->GetData()->m_radioGroup.end;
1616         }
1617
1618         // also uncheck all the other items in this radio group
1619         wxMenuItemIter node = items.Item(start);
1620         for ( int n = start; n <= end && node; n++ )
1621         {
1622             if ( n != pos )
1623             {
1624                 node->GetData()->m_isChecked = false;
1625             }
1626             node = node->GetNext();
1627         }
1628     }
1629
1630     wxMenuItemBase::Check(check);
1631
1632     NotifyMenu();
1633 }
1634
1635 // radio group stuff
1636 // -----------------
1637
1638 void wxMenuItem::SetAsRadioGroupStart()
1639 {
1640     m_isRadioGroupStart = true;
1641 }
1642
1643 void wxMenuItem::SetRadioGroupStart(int start)
1644 {
1645     wxASSERT_MSG( !m_isRadioGroupStart,
1646                   _T("should only be called for the next radio items") );
1647
1648     m_radioGroup.start = start;
1649 }
1650
1651 void wxMenuItem::SetRadioGroupEnd(int end)
1652 {
1653     wxASSERT_MSG( m_isRadioGroupStart,
1654                   _T("should only be called for the first radio item") );
1655
1656     m_radioGroup.end = end;
1657 }
1658
1659 // ----------------------------------------------------------------------------
1660 // wxMenuBar creation
1661 // ----------------------------------------------------------------------------
1662
1663 void wxMenuBar::Init()
1664 {
1665     m_frameLast = NULL;
1666
1667     m_current = -1;
1668
1669     m_menuShown = NULL;
1670
1671     m_shouldShowMenu = false;
1672 }
1673
1674 wxMenuBar::wxMenuBar(size_t n, wxMenu *menus[], const wxString titles[], long WXUNUSED(style))
1675 {
1676     Init();
1677
1678     for (size_t i = 0; i < n; ++i )
1679         Append(menus[i], titles[i]);
1680 }
1681
1682 void wxMenuBar::Attach(wxFrame *frame)
1683 {
1684     // maybe you really wanted to call Detach()?
1685     wxCHECK_RET( frame, _T("wxMenuBar::Attach(NULL) called") );
1686
1687     wxMenuBarBase::Attach(frame);
1688
1689     if ( IsCreated() )
1690     {
1691         // reparent if necessary
1692         if ( m_frameLast != frame )
1693         {
1694             Reparent(frame);
1695         }
1696
1697         // show it back - was hidden by Detach()
1698         Show();
1699     }
1700     else // not created yet, do it now
1701     {
1702         // we have no way to return the error from here anyhow :-(
1703         (void)Create(frame, wxID_ANY);
1704
1705         SetCursor(wxCURSOR_ARROW);
1706
1707         SetFont(wxSystemSettings::GetFont(wxSYS_SYSTEM_FONT));
1708
1709         // calculate and set our height (it won't be changed any more)
1710         SetSize(wxDefaultCoord, GetBestSize().y);
1711     }
1712
1713     // remember the last frame which had us to avoid unnecessarily reparenting
1714     // above
1715     m_frameLast = frame;
1716 }
1717
1718 void wxMenuBar::Detach()
1719 {
1720     // don't delete the window because we may be reattached later, just hide it
1721     if ( m_frameLast )
1722     {
1723         Hide();
1724     }
1725
1726     wxMenuBarBase::Detach();
1727 }
1728
1729 wxMenuBar::~wxMenuBar()
1730 {
1731 }
1732
1733 // ----------------------------------------------------------------------------
1734 // wxMenuBar adding/removing items
1735 // ----------------------------------------------------------------------------
1736
1737 bool wxMenuBar::Append(wxMenu *menu, const wxString& title)
1738 {
1739     return Insert(GetCount(), menu, title);
1740 }
1741
1742 bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
1743 {
1744     if ( !wxMenuBarBase::Insert(pos, menu, title) )
1745         return false;
1746
1747     wxMenuInfo *info = new wxMenuInfo(title);
1748     m_menuInfos.Insert(info, pos);
1749
1750     RefreshAllItemsAfter(pos);
1751
1752     return true;
1753 }
1754
1755 wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title)
1756 {
1757     wxMenu *menuOld = wxMenuBarBase::Replace(pos, menu, title);
1758
1759     if ( menuOld )
1760     {
1761         wxMenuInfo& info = m_menuInfos[pos];
1762
1763         info.SetLabel(title);
1764
1765         // even if the old menu was disabled, the new one is not any more
1766         info.SetEnabled();
1767
1768         // even if we change only this one, the new label has different width,
1769         // so we need to refresh everything beyond this item as well
1770         RefreshAllItemsAfter(pos);
1771     }
1772
1773     return menuOld;
1774 }
1775
1776 wxMenu *wxMenuBar::Remove(size_t pos)
1777 {
1778     wxMenu *menuOld = wxMenuBarBase::Remove(pos);
1779
1780     if ( menuOld )
1781     {
1782         m_menuInfos.RemoveAt(pos);
1783
1784         // this doesn't happen too often, so don't try to be too smart - just
1785         // refresh everything
1786         Refresh();
1787     }
1788
1789     return menuOld;
1790 }
1791
1792 // ----------------------------------------------------------------------------
1793 // wxMenuBar top level menus access
1794 // ----------------------------------------------------------------------------
1795
1796 wxCoord wxMenuBar::GetItemWidth(size_t pos) const
1797 {
1798     return m_menuInfos[pos].GetWidth(wxConstCast(this, wxMenuBar));
1799 }
1800
1801 void wxMenuBar::EnableTop(size_t pos, bool enable)
1802 {
1803     wxCHECK_RET( pos < GetCount(), _T("invalid index in EnableTop") );
1804
1805     if ( enable != m_menuInfos[pos].IsEnabled() )
1806     {
1807         m_menuInfos[pos].SetEnabled(enable);
1808
1809         RefreshItem(pos);
1810     }
1811     //else: nothing to do
1812 }
1813
1814 bool wxMenuBar::IsEnabledTop(size_t pos) const
1815 {
1816     wxCHECK_MSG( pos < GetCount(), false, _T("invalid index in IsEnabledTop") );
1817
1818     return m_menuInfos[pos].IsEnabled();
1819 }
1820
1821 void wxMenuBar::SetMenuLabel(size_t pos, const wxString& label)
1822 {
1823     wxCHECK_RET( pos < GetCount(), _T("invalid index in SetMenuLabel") );
1824
1825     if ( label != m_menuInfos[pos].GetOriginalLabel() )
1826     {
1827         m_menuInfos[pos].SetLabel(label);
1828
1829         RefreshItem(pos);
1830     }
1831     //else: nothing to do
1832 }
1833
1834 wxString wxMenuBar::GetMenuLabel(size_t pos) const
1835 {
1836     wxCHECK_MSG( pos < GetCount(), wxEmptyString, _T("invalid index in GetMenuLabel") );
1837
1838     return m_menuInfos[pos].GetOriginalLabel();
1839 }
1840
1841 // ----------------------------------------------------------------------------
1842 // wxMenuBar drawing
1843 // ----------------------------------------------------------------------------
1844
1845 void wxMenuBar::RefreshAllItemsAfter(size_t pos)
1846 {
1847     if ( !IsCreated() )
1848     {
1849         // no need to refresh if nothing is shown yet
1850         return;
1851     }
1852
1853     wxRect rect = GetItemRect(pos);
1854     rect.width = GetClientSize().x - rect.x;
1855     RefreshRect(rect);
1856 }
1857
1858 void wxMenuBar::RefreshItem(size_t pos)
1859 {
1860     wxCHECK_RET( pos != (size_t)-1,
1861                  _T("invalid item in wxMenuBar::RefreshItem") );
1862
1863     if ( !IsCreated() )
1864     {
1865         // no need to refresh if nothing is shown yet
1866         return;
1867     }
1868
1869     RefreshRect(GetItemRect(pos));
1870 }
1871
1872 void wxMenuBar::DoDraw(wxControlRenderer *renderer)
1873 {
1874     wxDC& dc = renderer->GetDC();
1875     dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
1876
1877     // redraw only the items which must be redrawn
1878
1879     // we don't have to use GetUpdateClientRect() here because our client rect
1880     // is the same as total one
1881     wxRect rectUpdate = GetUpdateRegion().GetBox();
1882
1883     int flagsMenubar = GetStateFlags();
1884
1885     wxRect rect;
1886     rect.y = 0;
1887     rect.height = GetClientSize().y;
1888
1889     wxCoord x = 0;
1890     size_t count = GetCount();
1891     for ( size_t n = 0; n < count; n++ )
1892     {
1893         if ( x > rectUpdate.GetRight() )
1894         {
1895             // all remaining items are to the right of rectUpdate
1896             break;
1897         }
1898
1899         rect.x = x;
1900         rect.width = GetItemWidth(n);
1901         x += rect.width;
1902         if ( x < rectUpdate.x )
1903         {
1904             // this item is still to the left of rectUpdate
1905             continue;
1906         }
1907
1908         int flags = flagsMenubar;
1909         if ( m_current != -1 && n == (size_t)m_current )
1910         {
1911             flags |= wxCONTROL_SELECTED;
1912         }
1913
1914         if ( !IsEnabledTop(n) )
1915         {
1916             flags |= wxCONTROL_DISABLED;
1917         }
1918
1919         GetRenderer()->DrawMenuBarItem
1920                        (
1921                             dc,
1922                             rect,
1923                             m_menuInfos[n].GetLabel(),
1924                             flags,
1925                             m_menuInfos[n].GetAccelIndex()
1926                        );
1927     }
1928 }
1929
1930 // ----------------------------------------------------------------------------
1931 // wxMenuBar geometry
1932 // ----------------------------------------------------------------------------
1933
1934 wxRect wxMenuBar::GetItemRect(size_t pos) const
1935 {
1936     wxASSERT_MSG( pos < GetCount(), _T("invalid menu bar item index") );
1937     wxASSERT_MSG( IsCreated(), _T("can't call this method yet") );
1938
1939     wxRect rect;
1940     rect.x =
1941     rect.y = 0;
1942     rect.height = GetClientSize().y;
1943
1944     for ( size_t n = 0; n < pos; n++ )
1945     {
1946         rect.x += GetItemWidth(n);
1947     }
1948
1949     rect.width = GetItemWidth(pos);
1950
1951     return rect;
1952 }
1953
1954 wxSize wxMenuBar::DoGetBestClientSize() const
1955 {
1956     wxSize size;
1957     if ( GetMenuCount() > 0 )
1958     {
1959         wxClientDC dc(wxConstCast(this, wxMenuBar));
1960         dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
1961         dc.GetTextExtent(GetMenuLabel(0), &size.x, &size.y);
1962
1963         // adjust for the renderer we use
1964         size = GetRenderer()->GetMenuBarItemSize(size);
1965     }
1966     else // empty menubar
1967     {
1968         size.x =
1969         size.y = 0;
1970     }
1971
1972     // the width is arbitrary, of course, for horizontal menubar
1973     size.x = 100;
1974
1975     return size;
1976 }
1977
1978 int wxMenuBar::GetMenuFromPoint(const wxPoint& pos) const
1979 {
1980     if ( pos.x < 0 || pos.y < 0 || pos.y > GetClientSize().y )
1981         return -1;
1982
1983     // do find it
1984     wxCoord x = 0;
1985     size_t count = GetCount();
1986     for ( size_t item = 0; item < count; item++ )
1987     {
1988         x += GetItemWidth(item);
1989
1990         if ( x > pos.x )
1991         {
1992             return item;
1993         }
1994     }
1995
1996     // to the right of the last menu item
1997     return -1;
1998 }
1999
2000 // ----------------------------------------------------------------------------
2001 // wxMenuBar menu operations
2002 // ----------------------------------------------------------------------------
2003
2004 void wxMenuBar::SelectMenu(size_t pos)
2005 {
2006     SetFocus();
2007     wxLogTrace(_T("mousecapture"), _T("Capturing mouse from wxMenuBar::SelectMenu"));
2008     CaptureMouse();
2009
2010     DoSelectMenu(pos);
2011 }
2012
2013 void wxMenuBar::DoSelectMenu(size_t pos)
2014 {
2015     wxCHECK_RET( pos < GetCount(), _T("invalid menu index in DoSelectMenu") );
2016
2017     int posOld = m_current;
2018
2019     m_current = pos;
2020
2021     if ( posOld != -1 )
2022     {
2023         // close the previous menu
2024         if ( IsShowingMenu() )
2025         {
2026             // restore m_shouldShowMenu flag after DismissMenu() which resets
2027             // it to false
2028             bool old = m_shouldShowMenu;
2029
2030             DismissMenu();
2031
2032             m_shouldShowMenu = old;
2033         }
2034
2035         RefreshItem((size_t)posOld);
2036     }
2037
2038     RefreshItem(pos);
2039 }
2040
2041 void wxMenuBar::PopupMenu(size_t pos)
2042 {
2043     wxCHECK_RET( pos < GetCount(), _T("invalid menu index in PopupCurrentMenu") );
2044
2045     SetFocus();
2046     DoSelectMenu(pos);
2047     PopupCurrentMenu();
2048 }
2049
2050 // ----------------------------------------------------------------------------
2051 // wxMenuBar input handing
2052 // ----------------------------------------------------------------------------
2053
2054 /*
2055    Note that wxMenuBar doesn't use wxInputHandler but handles keyboard and
2056    mouse in the same way under all platforms. This is because it doesn't derive
2057    from wxControl (which works with input handlers) but directly from wxWindow.
2058
2059    Also, menu bar input handling is rather simple, so maybe it's not really
2060    worth making it themeable - at least I've decided against doing it now as it
2061    would merging the changes back into trunk more difficult. But it still could
2062    be done later if really needed.
2063  */
2064
2065 void wxMenuBar::OnKillFocus(wxFocusEvent& event)
2066 {
2067     if ( m_current != -1 )
2068     {
2069         RefreshItem((size_t)m_current);
2070
2071         m_current = -1;
2072     }
2073
2074     event.Skip();
2075 }
2076
2077 void wxMenuBar::OnLeftDown(wxMouseEvent& event)
2078 {
2079     if ( HasCapture() )
2080     {
2081         OnDismiss();
2082
2083         event.Skip();
2084     }
2085     else // we didn't have mouse capture, capture it now
2086     {
2087         m_current = GetMenuFromPoint(event.GetPosition());
2088         if ( m_current == -1 )
2089         {
2090             // unfortunately, we can't prevent wxMSW from giving us the focus,
2091             // so we can only give it back
2092             GiveAwayFocus();
2093         }
2094         else // on item
2095         {
2096             wxLogTrace(_T("mousecapture"), _T("Capturing mouse from wxMenuBar::OnLeftDown"));
2097             CaptureMouse();
2098
2099             // show it as selected
2100             RefreshItem((size_t)m_current);
2101
2102             // show the menu
2103             PopupCurrentMenu(false /* don't select first item - as Windows does */);
2104         }
2105     }
2106 }
2107
2108 void wxMenuBar::OnMouseMove(wxMouseEvent& event)
2109 {
2110     if ( HasCapture() )
2111     {
2112         (void)ProcessMouseEvent(event.GetPosition());
2113     }
2114     else
2115     {
2116         event.Skip();
2117     }
2118 }
2119
2120 bool wxMenuBar::ProcessMouseEvent(const wxPoint& pt)
2121 {
2122     // a hack to ignore the extra mouse events MSW sends us: this is similar to
2123     // wxUSE_MOUSEEVENT_HACK in wxWin itself but it isn't enough for us here as
2124     // we get the messages from different windows (old and new popup menus for
2125     // example)
2126 #ifdef __WXMSW__
2127     static wxPoint s_ptLast;
2128     if ( pt == s_ptLast )
2129     {
2130         return false;
2131     }
2132
2133     s_ptLast = pt;
2134 #endif // __WXMSW__
2135
2136     int currentNew = GetMenuFromPoint(pt);
2137     if ( (currentNew == -1) || (currentNew == m_current) )
2138     {
2139         return false;
2140     }
2141
2142     // select the new active item
2143     DoSelectMenu(currentNew);
2144
2145     // show the menu if we know that we should, even if we hadn't been showing
2146     // it before (this may happen if the previous menu was disabled)
2147     if ( m_shouldShowMenu && !m_menuShown)
2148     {
2149         // open the new menu if the old one we closed had been opened
2150         PopupCurrentMenu(false /* don't select first item - as Windows does */);
2151     }
2152
2153     return true;
2154 }
2155
2156 void wxMenuBar::OnKeyDown(wxKeyEvent& event)
2157 {
2158     // ensure that we have a current item - we might not have it if we're
2159     // given the focus with Alt or F10 press (and under GTK+ the menubar
2160     // somehow gets the keyboard events even when it doesn't have focus...)
2161     if ( m_current == -1 )
2162     {
2163         if ( !HasCapture() )
2164         {
2165             SelectMenu(0);
2166         }
2167         else // we do have capture
2168         {
2169             // we always maintain a valid current item while we're in modal
2170             // state (i.e. have the capture)
2171             wxFAIL_MSG( _T("how did we manage to lose current item?") );
2172
2173             return;
2174         }
2175     }
2176
2177     int key = event.GetKeyCode();
2178
2179     // first let the menu have it
2180     if ( IsShowingMenu() && m_menuShown->ProcessKeyDown(key) )
2181     {
2182         return;
2183     }
2184
2185     // cycle through the menu items when left/right arrows are pressed and open
2186     // the menu when up/down one is
2187     switch ( key )
2188     {
2189         case WXK_ALT:
2190             // Alt must be processed at wxWindow level too
2191             event.Skip();
2192             // fall through
2193
2194         case WXK_ESCAPE:
2195             // remove the selection and give the focus away
2196             if ( m_current != -1 )
2197             {
2198                 if ( IsShowingMenu() )
2199                 {
2200                     DismissMenu();
2201                 }
2202
2203                 OnDismiss();
2204             }
2205             break;
2206
2207         case WXK_LEFT:
2208         case WXK_RIGHT:
2209             {
2210                 size_t count = GetCount();
2211                 if ( count == 1 )
2212                 {
2213                     // the item won't change anyhow
2214                     break;
2215                 }
2216                 //else: otherwise, it will
2217
2218                 // remember if we were showing a menu - if we did, we should
2219                 // show the new menu after changing the item
2220                 bool wasMenuOpened = IsShowingMenu();
2221                 if ( wasMenuOpened )
2222                 {
2223                     DismissMenu();
2224                 }
2225
2226                 // cast is safe as we tested for -1 above
2227                 size_t currentNew = (size_t)m_current;
2228
2229                 if ( key == WXK_LEFT )
2230                 {
2231                     if ( currentNew-- == 0 )
2232                         currentNew = count - 1;
2233                 }
2234                 else // right
2235                 {
2236                     if ( ++currentNew == count )
2237                         currentNew = 0;
2238                 }
2239
2240                 DoSelectMenu(currentNew);
2241
2242                 if ( wasMenuOpened )
2243                 {
2244                     PopupCurrentMenu();
2245                 }
2246             }
2247             break;
2248
2249         case WXK_DOWN:
2250         case WXK_UP:
2251         case WXK_RETURN:
2252             // open the menu
2253             PopupCurrentMenu();
2254             break;
2255
2256         default:
2257             // letters open the corresponding menu
2258             {
2259                 bool unique;
2260                 int idxFound = FindNextItemForAccel(m_current, key, &unique);
2261
2262                 if ( idxFound != -1 )
2263                 {
2264                     if ( IsShowingMenu() )
2265                     {
2266                         DismissMenu();
2267                     }
2268
2269                     DoSelectMenu((size_t)idxFound);
2270
2271                     // if the item is not unique, just select it but don't
2272                     // activate as the user might have wanted to activate
2273                     // another item
2274                     //
2275                     // also, don't try to open a disabled menu
2276                     if ( unique && IsEnabledTop((size_t)idxFound) )
2277                     {
2278                         // open the menu
2279                         PopupCurrentMenu();
2280                     }
2281
2282                     // skip the "event.Skip()" below
2283                     break;
2284                 }
2285             }
2286
2287             event.Skip();
2288     }
2289 }
2290
2291 // ----------------------------------------------------------------------------
2292 // wxMenuBar accel handling
2293 // ----------------------------------------------------------------------------
2294
2295 int wxMenuBar::FindNextItemForAccel(int idxStart, int key, bool *unique) const
2296 {
2297     if ( !wxIsalnum((wxChar)key) )
2298     {
2299         // we only support letters/digits as accels
2300         return -1;
2301     }
2302
2303     // do we have more than one item with this accel?
2304     if ( unique )
2305         *unique = true;
2306
2307     // translate everything to lower case before comparing
2308     wxChar chAccel = (wxChar)wxTolower(key);
2309
2310     // the index of the item with this accel
2311     int idxFound = -1;
2312
2313     // loop through all items searching for the item with this
2314     // accel starting at the item after the current one
2315     int count = GetCount();
2316     int n = idxStart == -1 ? 0 : idxStart + 1;
2317
2318     if ( n == count )
2319     {
2320         // wrap
2321         n = 0;
2322     }
2323
2324     idxStart = n;
2325     for ( ;; )
2326     {
2327         const wxMenuInfo& info = m_menuInfos[n];
2328
2329         int idxAccel = info.GetAccelIndex();
2330         if ( idxAccel != -1 &&
2331              (wxChar)wxTolower(info.GetLabel()[(size_t)idxAccel]) == chAccel )
2332         {
2333             // ok, found an item with this accel
2334             if ( idxFound == -1 )
2335             {
2336                 // store it but continue searching as we need to
2337                 // know if it's the only item with this accel or if
2338                 // there are more
2339                 idxFound = n;
2340             }
2341             else // we already had found such item
2342             {
2343                 if ( unique )
2344                     *unique = false;
2345
2346                 // no need to continue further, we won't find
2347                 // anything we don't already know
2348                 break;
2349             }
2350         }
2351
2352         // we want to iterate over all items wrapping around if
2353         // necessary
2354         if ( ++n == count )
2355         {
2356             // wrap
2357             n = 0;
2358         }
2359
2360         if ( n == idxStart )
2361         {
2362             // we've seen all items
2363             break;
2364         }
2365     }
2366
2367     return idxFound;
2368 }
2369
2370 #if wxUSE_ACCEL
2371
2372 bool wxMenuBar::ProcessAccelEvent(const wxKeyEvent& event)
2373 {
2374     size_t n = 0;
2375     for ( wxMenuList::compatibility_iterator node = m_menus.GetFirst();
2376           node;
2377           node = node->GetNext(), n++ )
2378     {
2379         // accels of the items in the disabled menus shouldn't work
2380         if ( m_menuInfos[n].IsEnabled() )
2381         {
2382             if ( node->GetData()->ProcessAccelEvent(event) )
2383             {
2384                 // menu processed it
2385                 return true;
2386             }
2387         }
2388     }
2389
2390     // not found
2391     return false;
2392 }
2393
2394 #endif // wxUSE_ACCEL
2395
2396 // ----------------------------------------------------------------------------
2397 // wxMenuBar menus showing
2398 // ----------------------------------------------------------------------------
2399
2400 void wxMenuBar::PopupCurrentMenu(bool selectFirst)
2401 {
2402     wxCHECK_RET( m_current != -1, _T("no menu to popup") );
2403
2404     // forgot to call DismissMenu()?
2405     wxASSERT_MSG( !m_menuShown, _T("shouldn't show two menus at once!") );
2406
2407     // in any case, we should show it - even if we won't
2408     m_shouldShowMenu = true;
2409
2410     if ( IsEnabledTop(m_current) )
2411     {
2412         // remember the menu we show
2413         m_menuShown = GetMenu(m_current);
2414
2415         // we don't show the menu at all if it has no items
2416         if ( !m_menuShown->IsEmpty() )
2417         {
2418             // position it correctly: note that we must use screen coords and
2419             // that we pass 0 as width to position the menu exactly below the
2420             // item, not to the right of it
2421             wxRect rectItem = GetItemRect(m_current);
2422
2423             m_menuShown->SetInvokingWindow(m_frameLast);
2424
2425             m_menuShown->Popup(ClientToScreen(rectItem.GetPosition()),
2426                                wxSize(0, rectItem.GetHeight()),
2427                                selectFirst);
2428         }
2429         else
2430         {
2431             // reset it back as no menu is shown
2432             m_menuShown = NULL;
2433         }
2434     }
2435     //else: don't show disabled menu
2436 }
2437
2438 void wxMenuBar::DismissMenu()
2439 {
2440     wxCHECK_RET( m_menuShown, _T("can't dismiss menu if none is shown") );
2441
2442     m_menuShown->Dismiss();
2443     OnDismissMenu();
2444 }
2445
2446 void wxMenuBar::OnDismissMenu(bool dismissMenuBar)
2447 {
2448     m_shouldShowMenu = false;
2449     m_menuShown = NULL;
2450     if ( dismissMenuBar )
2451     {
2452         OnDismiss();
2453     }
2454 }
2455
2456 void wxMenuBar::OnDismiss()
2457 {
2458     if ( ReleaseMouseCapture() )
2459         wxLogTrace(_T("mousecapture"), _T("Releasing mouse from wxMenuBar::OnDismiss"));
2460
2461     if ( m_current != -1 )
2462     {
2463         size_t current = m_current;
2464         m_current = -1;
2465
2466         RefreshItem(current);
2467     }
2468
2469     GiveAwayFocus();
2470 }
2471
2472 bool wxMenuBar::ReleaseMouseCapture()
2473 {
2474 #ifdef __WXX11__
2475     // With wxX11, when a menu is closed by clicking away from it, a control
2476     // under the click will still get an event, even though the menu has the
2477     // capture (bug?). So that control may already have taken the capture by
2478     // this point, preventing us from releasing the menu's capture. So to work
2479     // around this, we release both captures, then put back the control's
2480     // capture.
2481     wxWindow *capture = GetCapture();
2482     if ( capture )
2483     {
2484         capture->ReleaseMouse();
2485
2486         if ( capture == this )
2487             return true;
2488
2489         bool had = HasCapture();
2490
2491         if ( had )
2492             ReleaseMouse();
2493
2494         capture->CaptureMouse();
2495
2496         return had;
2497     }
2498 #else
2499     if ( HasCapture() )
2500     {
2501         ReleaseMouse();
2502         return true;
2503     }
2504 #endif
2505     return false;
2506 }
2507
2508 void wxMenuBar::GiveAwayFocus()
2509 {
2510     GetFrame()->SetFocus();
2511 }
2512
2513 // ----------------------------------------------------------------------------
2514 // popup menu support
2515 // ----------------------------------------------------------------------------
2516
2517 wxEventLoop *wxWindow::ms_evtLoopPopup = NULL;
2518
2519 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
2520 {
2521     wxCHECK_MSG( !ms_evtLoopPopup, false,
2522                  _T("can't show more than one popup menu at a time") );
2523
2524 #ifdef __WXMSW__
2525     // we need to change the cursor before showing the menu as, apparently, no
2526     // cursor changes took place while the mouse is captured
2527     wxCursor cursorOld = GetCursor();
2528     SetCursor(wxCURSOR_ARROW);
2529 #endif // __WXMSW__
2530
2531 #if 0
2532     // flash any delayed log messages before showing the menu, otherwise it
2533     // could be dismissed (because it would lose focus) immediately after being
2534     // shown
2535     wxLog::FlushActive();
2536
2537     // some controls update themselves from OnIdle() call - let them do it
2538     wxTheApp->ProcessIdle();
2539
2540     // if the window hadn't been refreshed yet, the menu can adversely affect
2541     // its next OnPaint() handler execution - i.e. scrolled window refresh
2542     // logic breaks then as it scrolls part of the menu which hadn't been there
2543     // when the update event was generated into view
2544     Update();
2545 #endif // 0
2546
2547     menu->SetInvokingWindow(this);
2548
2549     // wxLogDebug( "Name of invoking window %s", menu->GetInvokingWindow()->GetName().c_str() );
2550
2551     menu->Popup(ClientToScreen(wxPoint(x, y)), wxSize(0,0));
2552
2553     // this is not very useful if the menu was popped up because of the mouse
2554     // click but I think it is nice to do when it appears because of a key
2555     // press (i.e. Windows menu key)
2556     //
2557     // Windows itself doesn't do it, but IMHO this is nice
2558     WarpPointer(x, y);
2559
2560     // we have to redirect all keyboard input to the menu temporarily
2561     PushEventHandler(new wxMenuKbdRedirector(menu));
2562
2563     // enter the local modal loop
2564     ms_evtLoopPopup = new wxEventLoop;
2565     ms_evtLoopPopup->Run();
2566
2567     delete ms_evtLoopPopup;
2568     ms_evtLoopPopup = NULL;
2569
2570     // remove the handler
2571     PopEventHandler(true /* delete it */);
2572
2573     menu->SetInvokingWindow(NULL);
2574
2575 #ifdef __WXMSW__
2576     SetCursor(cursorOld);
2577 #endif // __WXMSW__
2578
2579     return true;
2580 }
2581
2582 void wxWindow::DismissPopupMenu()
2583 {
2584     wxCHECK_RET( ms_evtLoopPopup, _T("no popup menu shown") );
2585
2586     ms_evtLoopPopup->Exit();
2587 }
2588
2589 #endif // wxUSE_MENUS