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