src/univ/menu.cpp

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