src/univ/menu.cpp

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