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     wxDELETE(m_geometry);
1100 }
1101
1102 // ----------------------------------------------------------------------------
1103 // wxMenu adding/removing items
1104 // ----------------------------------------------------------------------------
1105
1106 void wxMenu::OnItemAdded(wxMenuItem *item)
1107 {
1108     InvalidateGeometryInfo();
1109
1110 #if wxUSE_ACCEL
1111     AddAccelFor(item);
1112 #endif // wxUSE_ACCEL
1113 }
1114
1115 void wxMenu::EndRadioGroup()
1116 {
1117     // we're not inside a radio group any longer
1118     m_startRadioGroup = -1;
1119 }
1120
1121 wxMenuItem* wxMenu::DoAppend(wxMenuItem *item)
1122 {
1123     if ( item->GetKind() == wxITEM_RADIO )
1124     {
1125         int count = GetMenuItemCount();
1126
1127         if ( m_startRadioGroup == -1 )
1128         {
1129             // start a new radio group
1130             m_startRadioGroup = count;
1131
1132             // for now it has just one element
1133             item->SetAsRadioGroupStart();
1134             item->SetRadioGroupEnd(m_startRadioGroup);
1135         }
1136         else // extend the current radio group
1137         {
1138             // we need to update its end item
1139             item->SetRadioGroupStart(m_startRadioGroup);
1140             wxMenuItemIter node = GetMenuItems().Item(m_startRadioGroup);
1141
1142             if ( node )
1143             {
1144                 node->GetData()->SetRadioGroupEnd(count);
1145             }
1146             else
1147             {
1148                 wxFAIL_MSG( wxT("where is the radio group start item?") );
1149             }
1150         }
1151     }
1152     else // not a radio item
1153     {
1154         EndRadioGroup();
1155     }
1156
1157     if ( !wxMenuBase::DoAppend(item) )
1158         return NULL;
1159
1160     OnItemAdded(item);
1161
1162     return item;
1163 }
1164
1165 wxMenuItem* wxMenu::DoInsert(size_t pos, wxMenuItem *item)
1166 {
1167     if ( !wxMenuBase::DoInsert(pos, item) )
1168         return NULL;
1169
1170     OnItemAdded(item);
1171
1172     return item;
1173 }
1174
1175 wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
1176 {
1177     wxMenuItem *itemOld = wxMenuBase::DoRemove(item);
1178
1179     if ( itemOld )
1180     {
1181         InvalidateGeometryInfo();
1182
1183 #if wxUSE_ACCEL
1184         RemoveAccelFor(item);
1185 #endif // wxUSE_ACCEL
1186     }
1187
1188     return itemOld;
1189 }
1190
1191 // ----------------------------------------------------------------------------
1192 // wxMenu attaching/detaching
1193 // ----------------------------------------------------------------------------
1194
1195 void wxMenu::Attach(wxMenuBarBase *menubar)
1196 {
1197     wxMenuBase::Attach(menubar);
1198
1199     wxCHECK_RET( m_menuBar, wxT("menubar can't be NULL after attaching") );
1200
1201     // unfortunately, we can't use m_menuBar->GetEventHandler() here because,
1202     // if the menubar is currently showing a menu, its event handler is a
1203     // temporary one installed by wxPopupWindow and so will disappear soon any
1204     // any attempts to use it from the newly attached menu would result in a
1205     // crash
1206     //
1207     // so we use the menubar itself, even if it's a pity as it means we can't
1208     // redirect all menu events by changing the menubar handler (FIXME)
1209     SetNextHandler(m_menuBar);
1210 }
1211
1212 void wxMenu::Detach()
1213 {
1214     wxMenuBase::Detach();
1215 }
1216
1217 // ----------------------------------------------------------------------------
1218 // wxMenu misc functions
1219 // ----------------------------------------------------------------------------
1220
1221 wxWindow *wxMenu::GetRootWindow() const
1222 {
1223     return GetMenuBar() ? GetMenuBar() : GetInvokingWindow();
1224 }
1225
1226 wxRenderer *wxMenu::GetRenderer() const
1227 {
1228     // we're going to crash without renderer!
1229     wxCHECK_MSG( m_popupMenu, NULL, wxT("neither popup nor menubar menu?") );
1230
1231     return m_popupMenu->GetRenderer();
1232 }
1233
1234 void wxMenu::RefreshItem(wxMenuItem *item)
1235 {
1236     // the item geometry changed, so our might have changed as well
1237     InvalidateGeometryInfo();
1238
1239     if ( IsShown() )
1240     {
1241         // this would be a bug in IsShown()
1242         wxCHECK_RET( m_popupMenu, wxT("must have popup window if shown!") );
1243
1244         // recalc geometry to update the item height and such
1245         (void)GetGeometryInfo();
1246
1247         m_popupMenu->RefreshItem(item);
1248     }
1249 }
1250
1251 // ----------------------------------------------------------------------------
1252 // wxMenu showing and hiding
1253 // ----------------------------------------------------------------------------
1254
1255 bool wxMenu::IsShown() const
1256 {
1257     return m_popupMenu && m_popupMenu->IsShown();
1258 }
1259
1260 void wxMenu::OnDismiss(bool dismissParent)
1261 {
1262     if ( m_menuParent )
1263     {
1264         // always notify the parent about submenu disappearance
1265         wxPopupMenuWindow *win = m_menuParent->m_popupMenu;
1266         if ( win )
1267         {
1268             win->OnSubmenuDismiss( true );
1269         }
1270         else
1271         {
1272             wxFAIL_MSG( wxT("parent menu not shown?") );
1273         }
1274
1275         // and if we dismiss everything, propagate to parent
1276         if ( dismissParent )
1277         {
1278             // dismissParent is recursive
1279             m_menuParent->Dismiss();
1280             m_menuParent->OnDismiss(true);
1281         }
1282     }
1283     else // no parent menu
1284     {
1285         // notify the menu bar if we're a top level menu
1286         if ( m_menuBar )
1287         {
1288             m_menuBar->OnDismissMenu(dismissParent);
1289         }
1290         else // popup menu
1291         {
1292             wxWindow * const win = GetInvokingWindow();
1293             wxCHECK_RET( win, wxT("what kind of menu is this?") );
1294
1295             win->DismissPopupMenu();
1296         }
1297     }
1298 }
1299
1300 void wxMenu::Popup(const wxPoint& pos, const wxSize& size, bool selectFirst)
1301 {
1302     // create the popup window if not done yet
1303     if ( !m_popupMenu )
1304     {
1305         m_popupMenu = new wxPopupMenuWindow(GetRootWindow(), this);
1306     }
1307
1308     // select the first item unless disabled
1309     if ( selectFirst )
1310     {
1311         m_popupMenu->SelectFirst();
1312     }
1313
1314     // the geometry might have changed since the last time we were shown, so
1315     // always resize
1316     m_popupMenu->SetClientSize(GetGeometryInfo().GetSize());
1317
1318     // position it as specified
1319     m_popupMenu->Position(pos, size);
1320
1321     // the menu can't have the focus itself (it is a Windows limitation), so
1322     // always keep the focus at the originating window
1323     wxWindow *focus = GetRootWindow();
1324
1325     wxASSERT_MSG( focus, wxT("no window to keep focus on?") );
1326
1327     // and show it
1328     m_popupMenu->Popup(focus);
1329 }
1330
1331 void wxMenu::Dismiss()
1332 {
1333     wxCHECK_RET( IsShown(), wxT("can't dismiss hidden menu") );
1334
1335     m_popupMenu->Dismiss();
1336 }
1337
1338 // ----------------------------------------------------------------------------
1339 // wxMenu event processing
1340 // ----------------------------------------------------------------------------
1341
1342 bool wxMenu::ProcessKeyDown(int key)
1343 {
1344     wxCHECK_MSG( m_popupMenu, false,
1345                  wxT("can't process key events if not shown") );
1346
1347     return m_popupMenu->ProcessKeyDown(key);
1348 }
1349
1350 bool wxMenu::ClickItem(wxMenuItem *item)
1351 {
1352     int isChecked;
1353     if ( item->IsCheckable() )
1354     {
1355         // update the item state
1356         isChecked = !item->IsChecked();
1357
1358         item->Check(isChecked != 0);
1359     }
1360     else
1361     {
1362         // not applicabled
1363         isChecked = -1;
1364     }
1365
1366     return SendEvent(item->GetId(), isChecked);
1367 }
1368
1369 // ----------------------------------------------------------------------------
1370 // wxMenu accel support
1371 // ----------------------------------------------------------------------------
1372
1373 #if wxUSE_ACCEL
1374
1375 bool wxMenu::ProcessAccelEvent(const wxKeyEvent& event)
1376 {
1377     // do we have an item for this accel?
1378     wxMenuItem *item = m_accelTable.GetMenuItem(event);
1379     if ( item && item->IsEnabled() )
1380     {
1381         return ClickItem(item);
1382     }
1383
1384     // try our submenus
1385     for ( wxMenuItemIter node = GetMenuItems().GetFirst();
1386           node;
1387           node = node->GetNext() )
1388     {
1389         const wxMenuItem *item = node->GetData();
1390         if ( item->IsSubMenu() && item->IsEnabled() )
1391         {
1392             // try its elements
1393             if ( item->GetSubMenu()->ProcessAccelEvent(event) )
1394             {
1395                 return true;
1396             }
1397         }
1398     }
1399
1400     return false;
1401 }
1402
1403 void wxMenu::AddAccelFor(wxMenuItem *item)
1404 {
1405     wxAcceleratorEntry *accel = item->GetAccel();
1406     if ( accel )
1407     {
1408         accel->SetMenuItem(item);
1409
1410         m_accelTable.Add(*accel);
1411
1412         delete accel;
1413     }
1414 }
1415
1416 void wxMenu::RemoveAccelFor(wxMenuItem *item)
1417 {
1418     wxAcceleratorEntry *accel = item->GetAccel();
1419     if ( accel )
1420     {
1421         m_accelTable.Remove(*accel);
1422
1423         delete accel;
1424     }
1425 }
1426
1427 #endif // wxUSE_ACCEL
1428
1429 // ----------------------------------------------------------------------------
1430 // wxMenuItem construction
1431 // ----------------------------------------------------------------------------
1432
1433 wxMenuItem::wxMenuItem(wxMenu *parentMenu,
1434                        int id,
1435                        const wxString& text,
1436                        const wxString& help,
1437                        wxItemKind kind,
1438                        wxMenu *subMenu)
1439           : wxMenuItemBase(parentMenu, id, text, help, kind, subMenu)
1440 {
1441     m_posY =
1442     m_height = wxDefaultCoord;
1443
1444     m_radioGroup.start = -1;
1445     m_isRadioGroupStart = false;
1446
1447     m_bmpDisabled = wxNullBitmap;
1448
1449     UpdateAccelInfo();
1450 }
1451
1452 wxMenuItem::~wxMenuItem()
1453 {
1454 }
1455
1456 // ----------------------------------------------------------------------------
1457 // wxMenuItemBase methods implemented here
1458 // ----------------------------------------------------------------------------
1459
1460 /* static */
1461 wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu,
1462                                 int id,
1463                                 const wxString& name,
1464                                 const wxString& help,
1465                                 wxItemKind kind,
1466                                 wxMenu *subMenu)
1467 {
1468     return new wxMenuItem(parentMenu, id, name, help, kind, subMenu);
1469 }
1470
1471 // ----------------------------------------------------------------------------
1472 // wxMenuItem operations
1473 // ----------------------------------------------------------------------------
1474
1475 void wxMenuItem::NotifyMenu()
1476 {
1477     m_parentMenu->RefreshItem(this);
1478 }
1479
1480 void wxMenuItem::UpdateAccelInfo()
1481 {
1482     m_indexAccel = wxControl::FindAccelIndex(m_text);
1483
1484     // will be empty if the text contains no TABs - ok
1485     m_strAccel = m_text.AfterFirst(wxT('\t'));
1486 }
1487
1488 void wxMenuItem::SetItemLabel(const wxString& text)
1489 {
1490     if ( text != m_text )
1491     {
1492         // first call the base class version to change m_text
1493         // (and also check if we don't have a stock menu item)
1494         wxMenuItemBase::SetItemLabel(text);
1495
1496         UpdateAccelInfo();
1497
1498         NotifyMenu();
1499     }
1500 }
1501
1502 void wxMenuItem::SetCheckable(bool checkable)
1503 {
1504     if ( checkable != IsCheckable() )
1505     {
1506         wxMenuItemBase::SetCheckable(checkable);
1507
1508         NotifyMenu();
1509     }
1510 }
1511
1512 void wxMenuItem::SetBitmaps(const wxBitmap& bmpChecked,
1513                             const wxBitmap& bmpUnchecked)
1514 {
1515     m_bmpChecked = bmpChecked;
1516     m_bmpUnchecked = bmpUnchecked;
1517
1518     NotifyMenu();
1519 }
1520
1521 void wxMenuItem::Enable(bool enable)
1522 {
1523     if ( enable != m_isEnabled )
1524     {
1525         wxMenuItemBase::Enable(enable);
1526
1527         NotifyMenu();
1528     }
1529 }
1530
1531 void wxMenuItem::Check(bool check)
1532 {
1533     wxCHECK_RET( IsCheckable(), wxT("only checkable items may be checked") );
1534
1535     if ( m_isChecked == check )
1536         return;
1537
1538     if ( GetKind() == wxITEM_RADIO )
1539     {
1540         // it doesn't make sense to uncheck a radio item - what would this do?
1541         if ( !check )
1542             return;
1543
1544         // get the index of this item in the menu
1545         const wxMenuItemList& items = m_parentMenu->GetMenuItems();
1546         int pos = items.IndexOf(this);
1547         wxCHECK_RET( pos != wxNOT_FOUND,
1548                      wxT("menuitem not found in the menu items list?") );
1549
1550         // get the radio group range
1551         int start,
1552             end;
1553
1554         if ( m_isRadioGroupStart )
1555         {
1556             // we already have all information we need
1557             start = pos;
1558             end = m_radioGroup.end;
1559         }
1560         else // next radio group item
1561         {
1562             // get the radio group end from the start item
1563             start = m_radioGroup.start;
1564             end = items.Item(start)->GetData()->m_radioGroup.end;
1565         }
1566
1567         // also uncheck all the other items in this radio group
1568         wxMenuItemIter node = items.Item(start);
1569         for ( int n = start; n <= end && node; n++ )
1570         {
1571             if ( n != pos )
1572             {
1573                 node->GetData()->m_isChecked = false;
1574             }
1575             node = node->GetNext();
1576         }
1577     }
1578
1579     wxMenuItemBase::Check(check);
1580
1581     NotifyMenu();
1582 }
1583
1584 // radio group stuff
1585 // -----------------
1586
1587 void wxMenuItem::SetAsRadioGroupStart()
1588 {
1589     m_isRadioGroupStart = true;
1590 }
1591
1592 void wxMenuItem::SetRadioGroupStart(int start)
1593 {
1594     wxASSERT_MSG( !m_isRadioGroupStart,
1595                   wxT("should only be called for the next radio items") );
1596
1597     m_radioGroup.start = start;
1598 }
1599
1600 void wxMenuItem::SetRadioGroupEnd(int end)
1601 {
1602     wxASSERT_MSG( m_isRadioGroupStart,
1603                   wxT("should only be called for the first radio item") );
1604
1605     m_radioGroup.end = end;
1606 }
1607
1608 // ----------------------------------------------------------------------------
1609 // wxMenuBar creation
1610 // ----------------------------------------------------------------------------
1611
1612 void wxMenuBar::Init()
1613 {
1614     m_frameLast = NULL;
1615
1616     m_current = -1;
1617
1618     m_menuShown = NULL;
1619
1620     m_shouldShowMenu = false;
1621 }
1622
1623 wxMenuBar::wxMenuBar(size_t n, wxMenu *menus[], const wxString titles[], long WXUNUSED(style))
1624 {
1625     Init();
1626
1627     for (size_t i = 0; i < n; ++i )
1628         Append(menus[i], titles[i]);
1629 }
1630
1631 void wxMenuBar::Attach(wxFrame *frame)
1632 {
1633     // maybe you really wanted to call Detach()?
1634     wxCHECK_RET( frame, wxT("wxMenuBar::Attach(NULL) called") );
1635
1636     wxMenuBarBase::Attach(frame);
1637
1638     if ( IsCreated() )
1639     {
1640         // reparent if necessary
1641         if ( m_frameLast != frame )
1642         {
1643             Reparent(frame);
1644         }
1645
1646         // show it back - was hidden by Detach()
1647         Show();
1648     }
1649     else // not created yet, do it now
1650     {
1651         // we have no way to return the error from here anyhow :-(
1652         (void)Create(frame, wxID_ANY);
1653
1654         SetCursor(wxCURSOR_ARROW);
1655
1656         SetFont(wxSystemSettings::GetFont(wxSYS_SYSTEM_FONT));
1657
1658         // calculate and set our height (it won't be changed any more)
1659         SetSize(wxDefaultCoord, GetBestSize().y);
1660     }
1661
1662     // remember the last frame which had us to avoid unnecessarily reparenting
1663     // above
1664     m_frameLast = frame;
1665 }
1666
1667 void wxMenuBar::Detach()
1668 {
1669     // don't delete the window because we may be reattached later, just hide it
1670     if ( m_frameLast )
1671     {
1672         Hide();
1673     }
1674
1675     wxMenuBarBase::Detach();
1676 }
1677
1678 wxMenuBar::~wxMenuBar()
1679 {
1680 }
1681
1682 // ----------------------------------------------------------------------------
1683 // wxMenuBar adding/removing items
1684 // ----------------------------------------------------------------------------
1685
1686 bool wxMenuBar::Append(wxMenu *menu, const wxString& title)
1687 {
1688     return Insert(GetCount(), menu, title);
1689 }
1690
1691 bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
1692 {
1693     if ( !wxMenuBarBase::Insert(pos, menu, title) )
1694         return false;
1695
1696     wxMenuInfo *info = new wxMenuInfo(title);
1697     m_menuInfos.Insert(info, pos);
1698
1699     RefreshAllItemsAfter(pos);
1700
1701     return true;
1702 }
1703
1704 wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title)
1705 {
1706     wxMenu *menuOld = wxMenuBarBase::Replace(pos, menu, title);
1707
1708     if ( menuOld )
1709     {
1710         wxMenuInfo& info = m_menuInfos[pos];
1711
1712         info.SetLabel(title);
1713
1714         // even if the old menu was disabled, the new one is not any more
1715         info.SetEnabled();
1716
1717         // even if we change only this one, the new label has different width,
1718         // so we need to refresh everything beyond this item as well
1719         RefreshAllItemsAfter(pos);
1720     }
1721
1722     return menuOld;
1723 }
1724
1725 wxMenu *wxMenuBar::Remove(size_t pos)
1726 {
1727     wxMenu *menuOld = wxMenuBarBase::Remove(pos);
1728
1729     if ( menuOld )
1730     {
1731         m_menuInfos.RemoveAt(pos);
1732
1733         // this doesn't happen too often, so don't try to be too smart - just
1734         // refresh everything
1735         Refresh();
1736     }
1737
1738     return menuOld;
1739 }
1740
1741 // ----------------------------------------------------------------------------
1742 // wxMenuBar top level menus access
1743 // ----------------------------------------------------------------------------
1744
1745 wxCoord wxMenuBar::GetItemWidth(size_t pos) const
1746 {
1747     return m_menuInfos[pos].GetWidth(wxConstCast(this, wxMenuBar));
1748 }
1749
1750 void wxMenuBar::EnableTop(size_t pos, bool enable)
1751 {
1752     wxCHECK_RET( pos < GetCount(), wxT("invalid index in EnableTop") );
1753
1754     if ( enable != m_menuInfos[pos].IsEnabled() )
1755     {
1756         m_menuInfos[pos].SetEnabled(enable);
1757
1758         RefreshItem(pos);
1759     }
1760     //else: nothing to do
1761 }
1762
1763 bool wxMenuBar::IsEnabledTop(size_t pos) const
1764 {
1765     wxCHECK_MSG( pos < GetCount(), false, wxT("invalid index in IsEnabledTop") );
1766
1767     return m_menuInfos[pos].IsEnabled();
1768 }
1769
1770 void wxMenuBar::SetMenuLabel(size_t pos, const wxString& label)
1771 {
1772     wxCHECK_RET( pos < GetCount(), wxT("invalid index in SetMenuLabel") );
1773
1774     if ( label != m_menuInfos[pos].GetOriginalLabel() )
1775     {
1776         m_menuInfos[pos].SetLabel(label);
1777
1778         RefreshItem(pos);
1779     }
1780     //else: nothing to do
1781 }
1782
1783 wxString wxMenuBar::GetMenuLabel(size_t pos) const
1784 {
1785     wxCHECK_MSG( pos < GetCount(), wxEmptyString, wxT("invalid index in GetMenuLabel") );
1786
1787     return m_menuInfos[pos].GetOriginalLabel();
1788 }
1789
1790 // ----------------------------------------------------------------------------
1791 // wxMenuBar drawing
1792 // ----------------------------------------------------------------------------
1793
1794 void wxMenuBar::RefreshAllItemsAfter(size_t pos)
1795 {
1796     if ( !IsCreated() )
1797     {
1798         // no need to refresh if nothing is shown yet
1799         return;
1800     }
1801
1802     wxRect rect = GetItemRect(pos);
1803     rect.width = GetClientSize().x - rect.x;
1804     RefreshRect(rect);
1805 }
1806
1807 void wxMenuBar::RefreshItem(size_t pos)
1808 {
1809     wxCHECK_RET( pos != (size_t)-1,
1810                  wxT("invalid item in wxMenuBar::RefreshItem") );
1811
1812     if ( !IsCreated() )
1813     {
1814         // no need to refresh if nothing is shown yet
1815         return;
1816     }
1817
1818     RefreshRect(GetItemRect(pos));
1819 }
1820
1821 void wxMenuBar::DoDraw(wxControlRenderer *renderer)
1822 {
1823     wxDC& dc = renderer->GetDC();
1824     dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
1825
1826     // redraw only the items which must be redrawn
1827
1828     // we don't have to use GetUpdateClientRect() here because our client rect
1829     // is the same as total one
1830     wxRect rectUpdate = GetUpdateRegion().GetBox();
1831
1832     int flagsMenubar = GetStateFlags();
1833
1834     wxRect rect;
1835     rect.y = 0;
1836     rect.height = GetClientSize().y;
1837
1838     wxCoord x = 0;
1839     size_t count = GetCount();
1840     for ( size_t n = 0; n < count; n++ )
1841     {
1842         if ( x > rectUpdate.GetRight() )
1843         {
1844             // all remaining items are to the right of rectUpdate
1845             break;
1846         }
1847
1848         rect.x = x;
1849         rect.width = GetItemWidth(n);
1850         x += rect.width;
1851         if ( x < rectUpdate.x )
1852         {
1853             // this item is still to the left of rectUpdate
1854             continue;
1855         }
1856
1857         int flags = flagsMenubar;
1858         if ( m_current != -1 && n == (size_t)m_current )
1859         {
1860             flags |= wxCONTROL_SELECTED;
1861         }
1862
1863         if ( !IsEnabledTop(n) )
1864         {
1865             flags |= wxCONTROL_DISABLED;
1866         }
1867
1868         GetRenderer()->DrawMenuBarItem
1869                        (
1870                             dc,
1871                             rect,
1872                             m_menuInfos[n].GetLabel(),
1873                             flags,
1874                             m_menuInfos[n].GetAccelIndex()
1875                        );
1876     }
1877 }
1878
1879 // ----------------------------------------------------------------------------
1880 // wxMenuBar geometry
1881 // ----------------------------------------------------------------------------
1882
1883 wxRect wxMenuBar::GetItemRect(size_t pos) const
1884 {
1885     wxASSERT_MSG( pos < GetCount(), wxT("invalid menu bar item index") );
1886     wxASSERT_MSG( IsCreated(), wxT("can't call this method yet") );
1887
1888     wxRect rect;
1889     rect.x =
1890     rect.y = 0;
1891     rect.height = GetClientSize().y;
1892
1893     for ( size_t n = 0; n < pos; n++ )
1894     {
1895         rect.x += GetItemWidth(n);
1896     }
1897
1898     rect.width = GetItemWidth(pos);
1899
1900     return rect;
1901 }
1902
1903 wxSize wxMenuBar::DoGetBestClientSize() const
1904 {
1905     wxSize size;
1906     if ( GetMenuCount() > 0 )
1907     {
1908         wxClientDC dc(wxConstCast(this, wxMenuBar));
1909         dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
1910         dc.GetTextExtent(GetMenuLabel(0), &size.x, &size.y);
1911
1912         // adjust for the renderer we use
1913         size = GetRenderer()->GetMenuBarItemSize(size);
1914     }
1915     else // empty menubar
1916     {
1917         size.x =
1918         size.y = 0;
1919     }
1920
1921     // the width is arbitrary, of course, for horizontal menubar
1922     size.x = 100;
1923
1924     return size;
1925 }
1926
1927 int wxMenuBar::GetMenuFromPoint(const wxPoint& pos) const
1928 {
1929     if ( pos.x < 0 || pos.y < 0 || pos.y > GetClientSize().y )
1930         return -1;
1931
1932     // do find it
1933     wxCoord x = 0;
1934     size_t count = GetCount();
1935     for ( size_t item = 0; item < count; item++ )
1936     {
1937         x += GetItemWidth(item);
1938
1939         if ( x > pos.x )
1940         {
1941             return item;
1942         }
1943     }
1944
1945     // to the right of the last menu item
1946     return -1;
1947 }
1948
1949 // ----------------------------------------------------------------------------
1950 // wxMenuBar menu operations
1951 // ----------------------------------------------------------------------------
1952
1953 void wxMenuBar::SelectMenu(size_t pos)
1954 {
1955     SetFocus();
1956     wxLogTrace(wxT("mousecapture"), wxT("Capturing mouse from wxMenuBar::SelectMenu"));
1957     CaptureMouse();
1958
1959     DoSelectMenu(pos);
1960 }
1961
1962 void wxMenuBar::DoSelectMenu(size_t pos)
1963 {
1964     wxCHECK_RET( pos < GetCount(), wxT("invalid menu index in DoSelectMenu") );
1965
1966     int posOld = m_current;
1967
1968     m_current = pos;
1969
1970     if ( posOld != -1 )
1971     {
1972         // close the previous menu
1973         if ( IsShowingMenu() )
1974         {
1975             // restore m_shouldShowMenu flag after DismissMenu() which resets
1976             // it to false
1977             bool old = m_shouldShowMenu;
1978
1979             DismissMenu();
1980
1981             m_shouldShowMenu = old;
1982         }
1983
1984         RefreshItem((size_t)posOld);
1985     }
1986
1987     RefreshItem(pos);
1988 }
1989
1990 void wxMenuBar::PopupMenu(size_t pos)
1991 {
1992     wxCHECK_RET( pos < GetCount(), wxT("invalid menu index in PopupCurrentMenu") );
1993
1994     SetFocus();
1995     DoSelectMenu(pos);
1996     PopupCurrentMenu();
1997 }
1998
1999 // ----------------------------------------------------------------------------
2000 // wxMenuBar input handing
2001 // ----------------------------------------------------------------------------
2002
2003 /*
2004    Note that wxMenuBar doesn't use wxInputHandler but handles keyboard and
2005    mouse in the same way under all platforms. This is because it doesn't derive
2006    from wxControl (which works with input handlers) but directly from wxWindow.
2007
2008    Also, menu bar input handling is rather simple, so maybe it's not really
2009    worth making it themeable - at least I've decided against doing it now as it
2010    would merging the changes back into trunk more difficult. But it still could
2011    be done later if really needed.
2012  */
2013
2014 void wxMenuBar::OnKillFocus(wxFocusEvent& event)
2015 {
2016     if ( m_current != -1 )
2017     {
2018         RefreshItem((size_t)m_current);
2019
2020         m_current = -1;
2021     }
2022
2023     event.Skip();
2024 }
2025
2026 void wxMenuBar::OnLeftDown(wxMouseEvent& event)
2027 {
2028     if ( HasCapture() )
2029     {
2030         OnDismiss();
2031
2032         event.Skip();
2033     }
2034     else // we didn't have mouse capture, capture it now
2035     {
2036         m_current = GetMenuFromPoint(event.GetPosition());
2037         if ( m_current == -1 )
2038         {
2039             // unfortunately, we can't prevent wxMSW from giving us the focus,
2040             // so we can only give it back
2041             GiveAwayFocus();
2042         }
2043         else // on item
2044         {
2045             wxLogTrace(wxT("mousecapture"), wxT("Capturing mouse from wxMenuBar::OnLeftDown"));
2046             CaptureMouse();
2047
2048             // show it as selected
2049             RefreshItem((size_t)m_current);
2050
2051             // show the menu
2052             PopupCurrentMenu(false /* don't select first item - as Windows does */);
2053         }
2054     }
2055 }
2056
2057 void wxMenuBar::OnMouseMove(wxMouseEvent& event)
2058 {
2059     if ( HasCapture() )
2060     {
2061         (void)ProcessMouseEvent(event.GetPosition());
2062     }
2063     else
2064     {
2065         event.Skip();
2066     }
2067 }
2068
2069 bool wxMenuBar::ProcessMouseEvent(const wxPoint& pt)
2070 {
2071     // a hack to ignore the extra mouse events MSW sends us: this is similar to
2072     // wxUSE_MOUSEEVENT_HACK in wxWin itself but it isn't enough for us here as
2073     // we get the messages from different windows (old and new popup menus for
2074     // example)
2075 #ifdef __WXMSW__
2076     static wxPoint s_ptLast;
2077     if ( pt == s_ptLast )
2078     {
2079         return false;
2080     }
2081
2082     s_ptLast = pt;
2083 #endif // __WXMSW__
2084
2085     int currentNew = GetMenuFromPoint(pt);
2086     if ( (currentNew == -1) || (currentNew == m_current) )
2087     {
2088         return false;
2089     }
2090
2091     // select the new active item
2092     DoSelectMenu(currentNew);
2093
2094     // show the menu if we know that we should, even if we hadn't been showing
2095     // it before (this may happen if the previous menu was disabled)
2096     if ( m_shouldShowMenu && !m_menuShown)
2097     {
2098         // open the new menu if the old one we closed had been opened
2099         PopupCurrentMenu(false /* don't select first item - as Windows does */);
2100     }
2101
2102     return true;
2103 }
2104
2105 void wxMenuBar::OnKeyDown(wxKeyEvent& event)
2106 {
2107     // ensure that we have a current item - we might not have it if we're
2108     // given the focus with Alt or F10 press (and under GTK+ the menubar
2109     // somehow gets the keyboard events even when it doesn't have focus...)
2110     if ( m_current == -1 )
2111     {
2112         if ( !HasCapture() )
2113         {
2114             SelectMenu(0);
2115         }
2116         else // we do have capture
2117         {
2118             // we always maintain a valid current item while we're in modal
2119             // state (i.e. have the capture)
2120             wxFAIL_MSG( wxT("how did we manage to lose current item?") );
2121
2122             return;
2123         }
2124     }
2125
2126     int key = event.GetKeyCode();
2127
2128     // first let the menu have it
2129     if ( IsShowingMenu() && m_menuShown->ProcessKeyDown(key) )
2130     {
2131         return;
2132     }
2133
2134     // cycle through the menu items when left/right arrows are pressed and open
2135     // the menu when up/down one is
2136     switch ( key )
2137     {
2138         case WXK_ALT:
2139             // Alt must be processed at wxWindow level too
2140             event.Skip();
2141             // fall through
2142
2143         case WXK_ESCAPE:
2144             // remove the selection and give the focus away
2145             if ( m_current != -1 )
2146             {
2147                 if ( IsShowingMenu() )
2148                 {
2149                     DismissMenu();
2150                 }
2151
2152                 OnDismiss();
2153             }
2154             break;
2155
2156         case WXK_LEFT:
2157         case WXK_RIGHT:
2158             {
2159                 size_t count = GetCount();
2160                 if ( count == 1 )
2161                 {
2162                     // the item won't change anyhow
2163                     break;
2164                 }
2165                 //else: otherwise, it will
2166
2167                 // remember if we were showing a menu - if we did, we should
2168                 // show the new menu after changing the item
2169                 bool wasMenuOpened = IsShowingMenu();
2170                 if ( wasMenuOpened )
2171                 {
2172                     DismissMenu();
2173                 }
2174
2175                 // cast is safe as we tested for -1 above
2176                 size_t currentNew = (size_t)m_current;
2177
2178                 if ( key == WXK_LEFT )
2179                 {
2180                     if ( currentNew-- == 0 )
2181                         currentNew = count - 1;
2182                 }
2183                 else // right
2184                 {
2185                     if ( ++currentNew == count )
2186                         currentNew = 0;
2187                 }
2188
2189                 DoSelectMenu(currentNew);
2190
2191                 if ( wasMenuOpened )
2192                 {
2193                     PopupCurrentMenu();
2194                 }
2195             }
2196             break;
2197
2198         case WXK_DOWN:
2199         case WXK_UP:
2200         case WXK_RETURN:
2201             // open the menu
2202             PopupCurrentMenu();
2203             break;
2204
2205         default:
2206             // letters open the corresponding menu
2207             {
2208                 bool unique;
2209                 int idxFound = FindNextItemForAccel(m_current, key, &unique);
2210
2211                 if ( idxFound != -1 )
2212                 {
2213                     if ( IsShowingMenu() )
2214                     {
2215                         DismissMenu();
2216                     }
2217
2218                     DoSelectMenu((size_t)idxFound);
2219
2220                     // if the item is not unique, just select it but don't
2221                     // activate as the user might have wanted to activate
2222                     // another item
2223                     //
2224                     // also, don't try to open a disabled menu
2225                     if ( unique && IsEnabledTop((size_t)idxFound) )
2226                     {
2227                         // open the menu
2228                         PopupCurrentMenu();
2229                     }
2230
2231                     // skip the "event.Skip()" below
2232                     break;
2233                 }
2234             }
2235
2236             event.Skip();
2237     }
2238 }
2239
2240 // ----------------------------------------------------------------------------
2241 // wxMenuBar accel handling
2242 // ----------------------------------------------------------------------------
2243
2244 int wxMenuBar::FindNextItemForAccel(int idxStart, int key, bool *unique) const
2245 {
2246     if ( !wxIsalnum((wxChar)key) )
2247     {
2248         // we only support letters/digits as accels
2249         return -1;
2250     }
2251
2252     // do we have more than one item with this accel?
2253     if ( unique )
2254         *unique = true;
2255
2256     // translate everything to lower case before comparing
2257     wxChar chAccel = (wxChar)wxTolower(key);
2258
2259     // the index of the item with this accel
2260     int idxFound = -1;
2261
2262     // loop through all items searching for the item with this
2263     // accel starting at the item after the current one
2264     int count = GetCount();
2265     int n = idxStart == -1 ? 0 : idxStart + 1;
2266
2267     if ( n == count )
2268     {
2269         // wrap
2270         n = 0;
2271     }
2272
2273     idxStart = n;
2274     for ( ;; )
2275     {
2276         const wxMenuInfo& info = m_menuInfos[n];
2277
2278         int idxAccel = info.GetAccelIndex();
2279         if ( idxAccel != -1 &&
2280              (wxChar)wxTolower(info.GetLabel()[(size_t)idxAccel]) == chAccel )
2281         {
2282             // ok, found an item with this accel
2283             if ( idxFound == -1 )
2284             {
2285                 // store it but continue searching as we need to
2286                 // know if it's the only item with this accel or if
2287                 // there are more
2288                 idxFound = n;
2289             }
2290             else // we already had found such item
2291             {
2292                 if ( unique )
2293                     *unique = false;
2294
2295                 // no need to continue further, we won't find
2296                 // anything we don't already know
2297                 break;
2298             }
2299         }
2300
2301         // we want to iterate over all items wrapping around if
2302         // necessary
2303         if ( ++n == count )
2304         {
2305             // wrap
2306             n = 0;
2307         }
2308
2309         if ( n == idxStart )
2310         {
2311             // we've seen all items
2312             break;
2313         }
2314     }
2315
2316     return idxFound;
2317 }
2318
2319 #if wxUSE_ACCEL
2320
2321 bool wxMenuBar::ProcessAccelEvent(const wxKeyEvent& event)
2322 {
2323     size_t n = 0;
2324     for ( wxMenuList::compatibility_iterator node = m_menus.GetFirst();
2325           node;
2326           node = node->GetNext(), n++ )
2327     {
2328         // accels of the items in the disabled menus shouldn't work
2329         if ( m_menuInfos[n].IsEnabled() )
2330         {
2331             if ( node->GetData()->ProcessAccelEvent(event) )
2332             {
2333                 // menu processed it
2334                 return true;
2335             }
2336         }
2337     }
2338
2339     // not found
2340     return false;
2341 }
2342
2343 #endif // wxUSE_ACCEL
2344
2345 // ----------------------------------------------------------------------------
2346 // wxMenuBar menus showing
2347 // ----------------------------------------------------------------------------
2348
2349 void wxMenuBar::PopupCurrentMenu(bool selectFirst)
2350 {
2351     wxCHECK_RET( m_current != -1, wxT("no menu to popup") );
2352
2353     // forgot to call DismissMenu()?
2354     wxASSERT_MSG( !m_menuShown, wxT("shouldn't show two menus at once!") );
2355
2356     // in any case, we should show it - even if we won't
2357     m_shouldShowMenu = true;
2358
2359     if ( IsEnabledTop(m_current) )
2360     {
2361         // remember the menu we show
2362         m_menuShown = GetMenu(m_current);
2363
2364         // we don't show the menu at all if it has no items
2365         if ( !m_menuShown->IsEmpty() )
2366         {
2367             // position it correctly: note that we must use screen coords and
2368             // that we pass 0 as width to position the menu exactly below the
2369             // item, not to the right of it
2370             wxRect rectItem = GetItemRect(m_current);
2371
2372             m_menuShown->Popup(ClientToScreen(rectItem.GetPosition()),
2373                                wxSize(0, rectItem.GetHeight()),
2374                                selectFirst);
2375         }
2376         else
2377         {
2378             // reset it back as no menu is shown
2379             m_menuShown = NULL;
2380         }
2381     }
2382     //else: don't show disabled menu
2383 }
2384
2385 void wxMenuBar::DismissMenu()
2386 {
2387     wxCHECK_RET( m_menuShown, wxT("can't dismiss menu if none is shown") );
2388
2389     m_menuShown->Dismiss();
2390     OnDismissMenu();
2391 }
2392
2393 void wxMenuBar::OnDismissMenu(bool dismissMenuBar)
2394 {
2395     m_shouldShowMenu = false;
2396     m_menuShown = NULL;
2397     if ( dismissMenuBar )
2398     {
2399         OnDismiss();
2400     }
2401 }
2402
2403 void wxMenuBar::OnDismiss()
2404 {
2405     if ( ReleaseMouseCapture() )
2406     {
2407         wxLogTrace(wxT("mousecapture"), wxT("Releasing mouse from wxMenuBar::OnDismiss"));
2408     }
2409
2410     if ( m_current != -1 )
2411     {
2412         size_t current = m_current;
2413         m_current = -1;
2414
2415         RefreshItem(current);
2416     }
2417
2418     GiveAwayFocus();
2419 }
2420
2421 bool wxMenuBar::ReleaseMouseCapture()
2422 {
2423 #ifdef __WXX11__
2424     // With wxX11, when a menu is closed by clicking away from it, a control
2425     // under the click will still get an event, even though the menu has the
2426     // capture (bug?). So that control may already have taken the capture by
2427     // this point, preventing us from releasing the menu's capture. So to work
2428     // around this, we release both captures, then put back the control's
2429     // capture.
2430     wxWindow *capture = GetCapture();
2431     if ( capture )
2432     {
2433         capture->ReleaseMouse();
2434
2435         if ( capture == this )
2436             return true;
2437
2438         bool had = HasCapture();
2439
2440         if ( had )
2441             ReleaseMouse();
2442
2443         capture->CaptureMouse();
2444
2445         return had;
2446     }
2447 #else
2448     if ( HasCapture() )
2449     {
2450         ReleaseMouse();
2451         return true;
2452     }
2453 #endif
2454     return false;
2455 }
2456
2457 void wxMenuBar::GiveAwayFocus()
2458 {
2459     GetFrame()->SetFocus();
2460 }
2461
2462 // ----------------------------------------------------------------------------
2463 // popup menu support
2464 // ----------------------------------------------------------------------------
2465
2466 wxEventLoop *wxWindow::ms_evtLoopPopup = NULL;
2467
2468 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
2469 {
2470     wxCHECK_MSG( !ms_evtLoopPopup, false,
2471                  wxT("can't show more than one popup menu at a time") );
2472
2473 #ifdef __WXMSW__
2474     // we need to change the cursor before showing the menu as, apparently, no
2475     // cursor changes took place while the mouse is captured
2476     wxCursor cursorOld = GetCursor();
2477     SetCursor(wxCURSOR_ARROW);
2478 #endif // __WXMSW__
2479
2480 #if 0
2481     // flash any delayed log messages before showing the menu, otherwise it
2482     // could be dismissed (because it would lose focus) immediately after being
2483     // shown
2484     wxLog::FlushActive();
2485
2486     // some controls update themselves from OnIdle() call - let them do it
2487     wxTheApp->ProcessIdle();
2488
2489     // if the window hadn't been refreshed yet, the menu can adversely affect
2490     // its next OnPaint() handler execution - i.e. scrolled window refresh
2491     // logic breaks then as it scrolls part of the menu which hadn't been there
2492     // when the update event was generated into view
2493     Update();
2494 #endif // 0
2495
2496     menu->Popup(ClientToScreen(wxPoint(x, y)), wxSize(0,0));
2497
2498     // this is not very useful if the menu was popped up because of the mouse
2499     // click but I think it is nice to do when it appears because of a key
2500     // press (i.e. Windows menu key)
2501     //
2502     // Windows itself doesn't do it, but IMHO this is nice
2503     WarpPointer(x, y);
2504
2505     // we have to redirect all keyboard input to the menu temporarily
2506     PushEventHandler(new wxMenuKbdRedirector(menu));
2507
2508     // enter the local modal loop
2509     ms_evtLoopPopup = new wxEventLoop;
2510     ms_evtLoopPopup->Run();
2511
2512     wxDELETE(ms_evtLoopPopup);
2513
2514     // remove the handler
2515     PopEventHandler(true /* delete it */);
2516
2517 #ifdef __WXMSW__
2518     SetCursor(cursorOld);
2519 #endif // __WXMSW__
2520
2521     return true;
2522 }
2523
2524 void wxWindow::DismissPopupMenu()
2525 {
2526     wxCHECK_RET( ms_evtLoopPopup, wxT("no popup menu shown") );
2527
2528     ms_evtLoopPopup->Exit();
2529 }
2530
2531 #endif // wxUSE_MENUS