samples/menu/menu.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        samples/menu.cpp
   3 // Purpose:     wxMenu/wxMenuBar sample
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     01.11.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 Vadim Zeitlin
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/app.h"
  29     #include "wx/frame.h"
  30     #include "wx/menu.h"
  31     #include "wx/msgdlg.h"
  32     #include "wx/log.h"
  33     #include "wx/textctrl.h"
  34     #include "wx/textdlg.h"
  35 #endif
  36
  37 #if !wxUSE_MENUS
  38     // nice try...
  39     #error "menu sample requires wxUSE_MENUS=1"
  40 #endif // wxUSE_MENUS
  41
  42 #include "copy.xpm"
  43
  44 // ----------------------------------------------------------------------------
  45 // classes
  46 // ----------------------------------------------------------------------------
  47
  48 // Define a new application
  49 class MyApp: public wxApp
  50 {
  51 public:
  52     bool OnInit();
  53 };
  54
  55 // Define a new frame
  56 class MyFrame: public wxFrame
  57 {
  58 public:
  59     MyFrame();
  60
  61     virtual ~MyFrame();
  62
  63     void LogMenuEvent(const wxCommandEvent& event);
  64
  65 protected:
  66     void OnQuit(wxCommandEvent& event);
  67     void OnClearLog(wxCommandEvent& event);
  68
  69     void OnAbout(wxCommandEvent& event);
  70
  71     void OnDummy(wxCommandEvent& event);
  72
  73     void OnAppendMenuItem(wxCommandEvent& event);
  74     void OnAppendSubMenu(wxCommandEvent& event);
  75     void OnDeleteMenuItem(wxCommandEvent& event);
  76     void OnInsertMenuItem(wxCommandEvent& event);
  77     void OnCheckMenuItem(wxCommandEvent& event);
  78     void OnEnableMenuItem(wxCommandEvent& event);
  79     void OnGetLabelMenuItem(wxCommandEvent& event);
  80     void OnSetLabelMenuItem(wxCommandEvent& event);
  81     void OnGetMenuItemInfo(wxCommandEvent& event);
  82     void OnFindMenuItem(wxCommandEvent& event);
  83
  84     void OnAppendMenu(wxCommandEvent& event);
  85     void OnInsertMenu(wxCommandEvent& event);
  86     void OnDeleteMenu(wxCommandEvent& event);
  87     void OnToggleMenu(wxCommandEvent& event);
  88     void OnEnableMenu(wxCommandEvent& event);
  89     void OnGetLabelMenu(wxCommandEvent& event);
  90     void OnSetLabelMenu(wxCommandEvent& event);
  91     void OnFindMenu(wxCommandEvent& event);
  92
  93     void OnTestNormal(wxCommandEvent& event);
  94     void OnTestCheck(wxCommandEvent& event);
  95     void OnTestRadio(wxCommandEvent& event);
  96
  97     void OnUpdateSubMenuNormal(wxUpdateUIEvent& event);
  98     void OnUpdateSubMenuCheck(wxUpdateUIEvent& event);
  99     void OnUpdateSubMenuRadio(wxUpdateUIEvent& event);
 100
 101 #if defined( __WXMSW__ ) || defined( __WXMAC__ )
 102     void OnContextMenu(wxContextMenuEvent& event)
 103         { ShowContextMenu(ScreenToClient(event.GetPosition())); }
 104 #else
 105     void OnRightUp(wxMouseEvent& event)
 106         { ShowContextMenu(event.GetPosition()); }
 107 #endif
 108
 109     void OnMenuOpen(wxMenuEvent& event)
 110         { LogMenuOpenOrClose(event, _T("opened")); }
 111     void OnMenuClose(wxMenuEvent& event)
 112         { LogMenuOpenOrClose(event, _T("closed")); }
 113
 114     void OnUpdateCheckMenuItemUI(wxUpdateUIEvent& event);
 115
 116     void OnSize(wxSizeEvent& event);
 117
 118 private:
 119     void LogMenuOpenOrClose(const wxMenuEvent& event, const wxChar *what);
 120     void ShowContextMenu(const wxPoint& pos);
 121
 122     wxMenu *CreateDummyMenu(wxString *title);
 123
 124     wxMenuItem *GetLastMenuItem() const;
 125
 126     // the menu previously detached from the menubar (may be NULL)
 127     wxMenu *m_menu;
 128
 129     // the count of dummy menus already created
 130     size_t m_countDummy;
 131
 132     // the control used for logging
 133     wxTextCtrl *m_textctrl;
 134
 135     // the previous log target
 136     wxLog *m_logOld;
 137
 138     DECLARE_EVENT_TABLE()
 139 };
 140
 141 // A small helper class which intercepts all menu events and logs them
 142 class MyEvtHandler : public wxEvtHandler
 143 {
 144 public:
 145     MyEvtHandler(MyFrame *frame) { m_frame = frame; }
 146
 147     void OnMenuEvent(wxCommandEvent& event)
 148     {
 149         m_frame->LogMenuEvent(event);
 150
 151         event.Skip();
 152     }
 153
 154 private:
 155     MyFrame *m_frame;
 156
 157     DECLARE_EVENT_TABLE()
 158 };
 159
 160 // ----------------------------------------------------------------------------
 161 // constants
 162 // ----------------------------------------------------------------------------
 163
 164 enum
 165 {
 166     Menu_File_Quit = 100,
 167     Menu_File_ClearLog,
 168
 169     Menu_MenuBar_Toggle = 200,
 170     Menu_MenuBar_Append,
 171     Menu_MenuBar_Insert,
 172     Menu_MenuBar_Delete,
 173     Menu_MenuBar_Enable,
 174     Menu_MenuBar_GetLabel,
 175     Menu_MenuBar_SetLabel,
 176     Menu_MenuBar_FindMenu,
 177
 178     Menu_Menu_Append = 300,
 179     Menu_Menu_AppendSub,
 180     Menu_Menu_Insert,
 181     Menu_Menu_Delete,
 182     Menu_Menu_Enable,
 183     Menu_Menu_Check,
 184     Menu_Menu_GetLabel,
 185     Menu_Menu_SetLabel,
 186     Menu_Menu_GetInfo,
 187     Menu_Menu_FindItem,
 188
 189     Menu_Test_Normal = 400,
 190     Menu_Test_Check,
 191     Menu_Test_Radio1,
 192     Menu_Test_Radio2,
 193     Menu_Test_Radio3,
 194
 195     Menu_SubMenu = 450,
 196     Menu_SubMenu_Normal,
 197     Menu_SubMenu_Check,
 198     Menu_SubMenu_Radio1,
 199     Menu_SubMenu_Radio2,
 200     Menu_SubMenu_Radio3,
 201
 202     Menu_Dummy_First = 500,
 203     Menu_Dummy_Second,
 204     Menu_Dummy_Third,
 205     Menu_Dummy_Fourth,
 206     Menu_Dummy_Last,
 207
 208     Menu_Help_About = 1000,
 209
 210     Menu_Popup_ToBeDeleted = 2000,
 211     Menu_Popup_ToBeGreyed,
 212     Menu_Popup_ToBeChecked,
 213     Menu_Popup_Submenu,
 214
 215     Menu_Max
 216 };
 217
 218 // ----------------------------------------------------------------------------
 219 // event tables
 220 // ----------------------------------------------------------------------------
 221
 222 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 223     EVT_MENU(Menu_File_Quit,     MyFrame::OnQuit)
 224     EVT_MENU(Menu_File_ClearLog, MyFrame::OnClearLog)
 225
 226     EVT_MENU(Menu_Help_About, MyFrame::OnAbout)
 227
 228     EVT_MENU(Menu_MenuBar_Toggle,   MyFrame::OnToggleMenu)
 229     EVT_MENU(Menu_MenuBar_Append,   MyFrame::OnAppendMenu)
 230     EVT_MENU(Menu_MenuBar_Insert,   MyFrame::OnInsertMenu)
 231     EVT_MENU(Menu_MenuBar_Delete,   MyFrame::OnDeleteMenu)
 232     EVT_MENU(Menu_MenuBar_Enable,   MyFrame::OnEnableMenu)
 233     EVT_MENU(Menu_MenuBar_GetLabel, MyFrame::OnGetLabelMenu)
 234     EVT_MENU(Menu_MenuBar_SetLabel, MyFrame::OnSetLabelMenu)
 235     EVT_MENU(Menu_MenuBar_FindMenu, MyFrame::OnFindMenu)
 236
 237     EVT_MENU(Menu_Menu_Append,    MyFrame::OnAppendMenuItem)
 238     EVT_MENU(Menu_Menu_AppendSub, MyFrame::OnAppendSubMenu)
 239     EVT_MENU(Menu_Menu_Insert,    MyFrame::OnInsertMenuItem)
 240     EVT_MENU(Menu_Menu_Delete,    MyFrame::OnDeleteMenuItem)
 241     EVT_MENU(Menu_Menu_Enable,    MyFrame::OnEnableMenuItem)
 242     EVT_MENU(Menu_Menu_Check,     MyFrame::OnCheckMenuItem)
 243     EVT_MENU(Menu_Menu_GetLabel,  MyFrame::OnGetLabelMenuItem)
 244     EVT_MENU(Menu_Menu_SetLabel,  MyFrame::OnSetLabelMenuItem)
 245     EVT_MENU(Menu_Menu_GetInfo,   MyFrame::OnGetMenuItemInfo)
 246     EVT_MENU(Menu_Menu_FindItem,  MyFrame::OnFindMenuItem)
 247
 248     EVT_MENU(Menu_Test_Normal,    MyFrame::OnTestNormal)
 249     EVT_MENU(Menu_Test_Check,     MyFrame::OnTestCheck)
 250     EVT_MENU(Menu_Test_Radio1,    MyFrame::OnTestRadio)
 251     EVT_MENU(Menu_Test_Radio2,    MyFrame::OnTestRadio)
 252     EVT_MENU(Menu_Test_Radio3,    MyFrame::OnTestRadio)
 253
 254     EVT_UPDATE_UI(Menu_SubMenu_Normal,    MyFrame::OnUpdateSubMenuNormal)
 255     EVT_UPDATE_UI(Menu_SubMenu_Check,     MyFrame::OnUpdateSubMenuCheck)
 256     EVT_UPDATE_UI(Menu_SubMenu_Radio1,    MyFrame::OnUpdateSubMenuRadio)
 257     EVT_UPDATE_UI(Menu_SubMenu_Radio2,    MyFrame::OnUpdateSubMenuRadio)
 258     EVT_UPDATE_UI(Menu_SubMenu_Radio3,    MyFrame::OnUpdateSubMenuRadio)
 259
 260     EVT_MENU_RANGE(Menu_Dummy_First, Menu_Dummy_Last, MyFrame::OnDummy)
 261
 262     EVT_UPDATE_UI(Menu_Menu_Check, MyFrame::OnUpdateCheckMenuItemUI)
 263
 264 #if defined( __WXMSW__ ) || defined( __WXMAC__ )
 265     EVT_CONTEXT_MENU(MyFrame::OnContextMenu)
 266 #else
 267     EVT_RIGHT_UP(MyFrame::OnRightUp)
 268 #endif
 269
 270     EVT_MENU_OPEN(MyFrame::OnMenuOpen)
 271     EVT_MENU_CLOSE(MyFrame::OnMenuClose)
 272
 273     EVT_SIZE(MyFrame::OnSize)
 274 END_EVENT_TABLE()
 275
 276 BEGIN_EVENT_TABLE(MyEvtHandler, wxEvtHandler)
 277     EVT_MENU(-1, MyEvtHandler::OnMenuEvent)
 278 END_EVENT_TABLE()
 279
 280 // ============================================================================
 281 // implementation
 282 // ============================================================================
 283
 284 // ----------------------------------------------------------------------------
 285 // MyApp
 286 // ----------------------------------------------------------------------------
 287
 288 IMPLEMENT_APP(MyApp)
 289
 290 // The `main program' equivalent, creating the windows and returning the
 291 // main frame
 292 bool MyApp::OnInit()
 293 {
 294     // Create the main frame window
 295     MyFrame* frame = new MyFrame;
 296
 297     frame->Show(TRUE);
 298
 299 #if wxUSE_STATUSBAR
 300     frame->SetStatusText(_T("Welcome to wxWindows menu sample"));
 301 #endif // wxUSE_STATUSBAR
 302
 303     SetTopWindow(frame);
 304
 305     return TRUE;
 306 }
 307
 308 // ----------------------------------------------------------------------------
 309 // MyFrame
 310 // ----------------------------------------------------------------------------
 311
 312 // Define my frame constructor
 313 MyFrame::MyFrame()
 314        : wxFrame((wxFrame *)NULL, -1, _T("wxWindows menu sample"),
 315                  wxDefaultPosition, wxSize(400, 250))
 316 {
 317     m_textctrl = NULL;
 318     m_menu = NULL;
 319     m_countDummy = 0;
 320     m_logOld = NULL;
 321
 322 #if wxUSE_STATUSBAR
 323     CreateStatusBar();
 324 #endif // wxUSE_STATUSBAR
 325
 326     // create the menubar
 327     wxMenu *fileMenu = new wxMenu;
 328
 329     wxMenuItem *item = new wxMenuItem(fileMenu, Menu_File_ClearLog,
 330                                       _T("Clear &log\tCtrl-L"));
 331     item->SetBitmap(copy_xpm);
 332     fileMenu->Append(item);
 333     fileMenu->AppendSeparator();
 334     fileMenu->Append(Menu_File_Quit, _T("E&xit\tAlt-X"), _T("Quit menu sample"));
 335
 336     wxMenu *menubarMenu = new wxMenu;
 337     menubarMenu->Append(Menu_MenuBar_Append, _T("&Append menu\tCtrl-A"),
 338                         _T("Append a menu to the menubar"));
 339     menubarMenu->Append(Menu_MenuBar_Insert, _T("&Insert menu\tCtrl-I"),
 340                         _T("Insert a menu into the menubar"));
 341     menubarMenu->Append(Menu_MenuBar_Delete, _T("&Delete menu\tCtrl-D"),
 342                         _T("Delete the last menu from the menubar"));
 343     menubarMenu->Append(Menu_MenuBar_Toggle, _T("&Toggle menu\tCtrl-T"),
 344                         _T("Toggle the first menu in the menubar"), TRUE);
 345     menubarMenu->AppendSeparator();
 346     menubarMenu->Append(Menu_MenuBar_Enable, _T("&Enable menu\tCtrl-E"),
 347                         _T("Enable or disable the last menu"), TRUE);
 348     menubarMenu->AppendSeparator();
 349     menubarMenu->Append(Menu_MenuBar_GetLabel, _T("&Get menu label\tCtrl-G"),
 350                         _T("Get the label of the last menu"));
 351     menubarMenu->Append(Menu_MenuBar_SetLabel, _T("&Set menu label\tCtrl-S"),
 352                         _T("Change the label of the last menu"));
 353     menubarMenu->AppendSeparator();
 354     menubarMenu->Append(Menu_MenuBar_FindMenu, _T("&Find menu from label\tCtrl-F"),
 355                         _T("Find a menu by searching for its label"));
 356
 357     wxMenu* subMenu = new wxMenu;
 358     subMenu->Append(Menu_SubMenu_Normal, _T("&Normal submenu item"), _T("Disabled submenu item"));
 359     subMenu->AppendCheckItem(Menu_SubMenu_Check, _T("&Unchecked submenu item"), _T("Unchecked submenu item"));
 360     subMenu->AppendRadioItem(Menu_SubMenu_Radio1, _T("&Radio item 1"), _T("Radio item"));
 361     subMenu->AppendRadioItem(Menu_SubMenu_Radio2, _T("&Radio item 2"), _T("Radio item"));
 362     subMenu->AppendRadioItem(Menu_SubMenu_Radio3, _T("&Radio item 3"), _T("Radio item"));
 363
 364     menubarMenu->Append(Menu_SubMenu, _T("Submenu"), subMenu);
 365
 366     wxMenu *menuMenu = new wxMenu;
 367     menuMenu->Append(Menu_Menu_Append, _T("&Append menu item\tAlt-A"),
 368                      _T("Append a menu item to the last menu"));
 369     menuMenu->Append(Menu_Menu_AppendSub, _T("&Append sub menu\tAlt-S"),
 370                      _T("Append a sub menu to the last menu"));
 371     menuMenu->Append(Menu_Menu_Insert, _T("&Insert menu item\tAlt-I"),
 372                      _T("Insert a menu item in head of the last menu"));
 373     menuMenu->Append(Menu_Menu_Delete, _T("&Delete menu item\tAlt-D"),
 374                      _T("Delete the last menu item from the last menu"));
 375     menuMenu->AppendSeparator();
 376     menuMenu->Append(Menu_Menu_Enable, _T("&Enable menu item\tAlt-E"),
 377                      _T("Enable or disable the last menu item"), TRUE);
 378     menuMenu->Append(Menu_Menu_Check, _T("&Check menu item\tAlt-C"),
 379                      _T("Check or uncheck the last menu item"), TRUE);
 380     menuMenu->AppendSeparator();
 381     menuMenu->Append(Menu_Menu_GetInfo, _T("Get menu item in&fo\tAlt-F"),
 382                      _T("Show the state of the last menu item"));
 383     menuMenu->AppendSeparator();
 384     menuMenu->Append(Menu_Menu_FindItem, _T("Find menu item from label"),
 385                      _T("Find a menu item by searching for its label"));
 386
 387     wxMenu *testMenu = new wxMenu;
 388     testMenu->Append(Menu_Test_Normal, _T("&Normal item"));
 389     testMenu->AppendSeparator();
 390     testMenu->AppendCheckItem(Menu_Test_Check, _T("&Check item"));
 391     testMenu->AppendSeparator();
 392     testMenu->AppendRadioItem(Menu_Test_Radio1, _T("Radio item &1"));
 393     testMenu->AppendRadioItem(Menu_Test_Radio2, _T("Radio item &2"));
 394     testMenu->AppendRadioItem(Menu_Test_Radio3, _T("Radio item &3"));
 395
 396     wxMenu *helpMenu = new wxMenu;
 397     helpMenu->Append(Menu_Help_About, _T("&About\tF1"), _T("About menu sample"));
 398
 399     wxMenuBar* menuBar = new wxMenuBar( wxMB_DOCKABLE );
 400
 401     menuBar->Append(fileMenu, _T("&File"));
 402     menuBar->Append(menubarMenu, _T("Menu&bar"));
 403     menuBar->Append(menuMenu, _T("&Menu"));
 404     menuBar->Append(testMenu, _T("&Test"));
 405     menuBar->Append(helpMenu, _T("&Help"));
 406
 407     // these items should be initially checked
 408     menuBar->Check(Menu_MenuBar_Toggle, TRUE);
 409     menuBar->Check(Menu_MenuBar_Enable, TRUE);
 410     menuBar->Check(Menu_Menu_Enable, TRUE);
 411     menuBar->Check(Menu_Menu_Check, FALSE);
 412
 413     // associate the menu bar with the frame
 414     SetMenuBar(menuBar);
 415
 416     // intercept all menu events and log them in this custom event handler
 417     PushEventHandler(new MyEvtHandler(this));
 418
 419     // create the log text window
 420     m_textctrl = new wxTextCtrl(this, -1, _T(""),
 421                                 wxDefaultPosition, wxDefaultSize,
 422                                 wxTE_MULTILINE);
 423     m_textctrl->SetEditable(FALSE);
 424
 425     wxLog::SetTimestamp(NULL);
 426     m_logOld = wxLog::SetActiveTarget(new wxLogTextCtrl(m_textctrl));
 427
 428     wxLogMessage(_T("Brief explanations: the commands or the \"Menu\" menu ")
 429                  _T("append/insert/delete items to/from the last menu.\n")
 430                  _T("The commands from \"Menubar\" menu work with the ")
 431                  _T("menubar itself.\n\n")
 432                  _T("Right click the band below to test popup menus.\n"));
 433 }
 434
 435 MyFrame::~MyFrame()
 436 {
 437     delete m_menu;
 438
 439     // delete the event handler installed in ctor
 440     PopEventHandler(TRUE);
 441
 442     // restore old logger
 443     delete wxLog::SetActiveTarget(m_logOld);
 444 }
 445
 446 wxMenu *MyFrame::CreateDummyMenu(wxString *title)
 447 {
 448     wxMenu *menu = new wxMenu;
 449     menu->Append(Menu_Dummy_First, _T("&First item\tCtrl-F1"));
 450     menu->AppendSeparator();
 451     menu->Append(Menu_Dummy_Second, _T("&Second item\tCtrl-F2"), _T(""), TRUE);
 452
 453     if ( title )
 454     {
 455         title->Printf(wxT("Dummy menu &%u"), (unsigned)++m_countDummy);
 456     }
 457
 458     return menu;
 459 }
 460
 461 wxMenuItem *MyFrame::GetLastMenuItem() const
 462 {
 463     wxMenuBar *menubar = GetMenuBar();
 464     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 465
 466     wxMenuItemList::Node *node = menu->GetMenuItems().GetLast();
 467     if ( !node )
 468     {
 469         wxLogWarning(wxT("No last item in the last menu!"));
 470
 471         return NULL;
 472     }
 473     else
 474     {
 475         return node->GetData();
 476     }
 477 }
 478
 479 void MyFrame::LogMenuEvent(const wxCommandEvent& event)
 480 {
 481     int id = event.GetId();
 482     if ( !GetMenuBar()->FindItem(id) )
 483         return;
 484
 485     wxString msg = wxString::Format(wxT("Menu command %d"), id);
 486     if ( GetMenuBar()->FindItem(id)->IsCheckable() )
 487     {
 488         msg += wxString::Format(wxT(" (the item is currently %schecked)"),
 489                                 event.IsChecked() ? "" : "not ");
 490     }
 491
 492     wxLogMessage(msg);
 493 }
 494
 495 // ----------------------------------------------------------------------------
 496 // menu callbacks
 497 // ----------------------------------------------------------------------------
 498
 499 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 500 {
 501     Close(TRUE);
 502 }
 503
 504 void MyFrame::OnClearLog(wxCommandEvent& WXUNUSED(event))
 505 {
 506     m_textctrl->Clear();
 507 }
 508
 509 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 510 {
 511     (void)wxMessageBox(_T("wxWindows menu sample\n© 1999-2001 Vadim Zeitlin"),
 512                        _T("About wxWindows menu sample"),
 513                        wxICON_INFORMATION);
 514 }
 515
 516 void MyFrame::OnDeleteMenu(wxCommandEvent& WXUNUSED(event))
 517 {
 518     wxMenuBar *mbar = GetMenuBar();
 519
 520     size_t count = mbar->GetMenuCount();
 521     if ( count == 2 )
 522     {
 523         // don't let delete the first 2 menus
 524         wxLogError(wxT("Can't delete any more menus"));
 525     }
 526     else
 527     {
 528         delete mbar->Remove(count - 1);
 529     }
 530 }
 531
 532 void MyFrame::OnInsertMenu(wxCommandEvent& WXUNUSED(event))
 533 {
 534     wxString title;
 535     wxMenu *menu = CreateDummyMenu(&title);
 536     GetMenuBar()->Insert(0, menu, title);
 537 }
 538
 539 void MyFrame::OnAppendMenu(wxCommandEvent& WXUNUSED(event))
 540 {
 541     wxString title;
 542     wxMenu *menu = CreateDummyMenu(&title);
 543     GetMenuBar()->Append(menu, title);
 544 }
 545
 546 void MyFrame::OnToggleMenu(wxCommandEvent& WXUNUSED(event))
 547 {
 548     wxMenuBar *mbar = GetMenuBar();
 549     if ( !m_menu )
 550     {
 551         // hide the menu
 552         m_menu = mbar->Remove(0);
 553     }
 554     else
 555     {
 556         // restore it
 557         mbar->Insert(0, m_menu, _T("&File"));
 558         m_menu = NULL;
 559     }
 560 }
 561
 562 void MyFrame::OnEnableMenu(wxCommandEvent& event)
 563 {
 564     wxMenuBar *mbar = GetMenuBar();
 565     size_t count = mbar->GetMenuCount();
 566
 567     mbar->EnableTop(count - 1, event.IsChecked());
 568 }
 569
 570 void MyFrame::OnGetLabelMenu(wxCommandEvent& WXUNUSED(event))
 571 {
 572     wxMenuBar *mbar = GetMenuBar();
 573     size_t count = mbar->GetMenuCount();
 574
 575     wxCHECK_RET( count, _T("no last menu?") );
 576
 577     wxLogMessage(wxT("The label of the last menu item is '%s'"),
 578                  mbar->GetLabelTop(count - 1).c_str());
 579 }
 580
 581 void MyFrame::OnSetLabelMenu(wxCommandEvent& WXUNUSED(event))
 582 {
 583     wxMenuBar *mbar = GetMenuBar();
 584     size_t count = mbar->GetMenuCount();
 585
 586     wxCHECK_RET( count, _T("no last menu?") );
 587
 588     wxString label = wxGetTextFromUser
 589                      (
 590                         _T("Enter new label: "),
 591                         _T("Change last menu text"),
 592                         mbar->GetLabelTop(count - 1),
 593                         this
 594                      );
 595
 596     if ( !label.empty() )
 597     {
 598         mbar->SetLabelTop(count - 1, label);
 599     }
 600 }
 601
 602 void MyFrame::OnFindMenu(wxCommandEvent& WXUNUSED(event))
 603 {
 604     wxMenuBar *mbar = GetMenuBar();
 605     size_t count = mbar->GetMenuCount();
 606
 607     wxCHECK_RET( count, _T("no last menu?") );
 608
 609     wxString label = wxGetTextFromUser
 610                      (
 611                         _T("Enter label to search for: "),
 612                         _T("Find menu"),
 613                         _T(""),
 614                         this
 615                      );
 616
 617     if ( !label.empty() )
 618     {
 619         int index = mbar->FindMenu(label);
 620
 621         if (index == wxNOT_FOUND)
 622         {
 623             wxLogWarning(wxT("No menu with label '%s'"), label.c_str());
 624         }
 625         else
 626         {
 627             wxLogMessage(wxT("Menu %d has label '%s'"), index, label.c_str());
 628         }
 629     }
 630 }
 631
 632 void MyFrame::OnDummy(wxCommandEvent& event)
 633 {
 634     wxLogMessage(wxT("Dummy item #%d"), event.GetId() - Menu_Dummy_First + 1);
 635 }
 636
 637 void MyFrame::OnAppendMenuItem(wxCommandEvent& WXUNUSED(event))
 638 {
 639     wxMenuBar *menubar = GetMenuBar();
 640     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 641
 642     menu->AppendSeparator();
 643     menu->Append(Menu_Dummy_Third, _T("&Third dummy item\tCtrl-F3"),
 644                  _T("Checkable item"), TRUE);
 645 }
 646
 647 void MyFrame::OnAppendSubMenu(wxCommandEvent& WXUNUSED(event))
 648 {
 649     wxMenuBar *menubar = GetMenuBar();
 650
 651     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 2);
 652
 653     menu->Append(Menu_Dummy_Last, _T("&Dummy sub menu"),
 654                  CreateDummyMenu(NULL), _T("Dummy sub menu help"));
 655 }
 656
 657 void MyFrame::OnDeleteMenuItem(wxCommandEvent& WXUNUSED(event))
 658 {
 659     wxMenuBar *menubar = GetMenuBar();
 660     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 661
 662     size_t count = menu->GetMenuItemCount();
 663     if ( !count )
 664     {
 665         wxLogWarning(wxT("No items to delete!"));
 666     }
 667     else
 668     {
 669         menu->Destroy(menu->GetMenuItems().Item(count - 1)->GetData());
 670     }
 671 }
 672
 673 void MyFrame::OnInsertMenuItem(wxCommandEvent& WXUNUSED(event))
 674 {
 675     wxMenuBar *menubar = GetMenuBar();
 676     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 677
 678     menu->Insert(0, wxMenuItem::New(menu, Menu_Dummy_Fourth,
 679                                     _T("Fourth dummy item\tCtrl-F4")));
 680     menu->Insert(1, wxMenuItem::New(menu, wxID_SEPARATOR, _T("")));
 681 }
 682
 683 void MyFrame::OnEnableMenuItem(wxCommandEvent& WXUNUSED(event))
 684 {
 685     wxMenuItem *item = GetLastMenuItem();
 686
 687     if ( item )
 688     {
 689         item->Enable(!item->IsEnabled());
 690     }
 691 }
 692
 693 void MyFrame::OnCheckMenuItem(wxCommandEvent& WXUNUSED(event))
 694 {
 695     wxMenuItem *item = GetLastMenuItem();
 696
 697     item->Toggle();
 698 }
 699
 700 void MyFrame::OnUpdateCheckMenuItemUI(wxUpdateUIEvent& event)
 701 {
 702     wxLogNull nolog;
 703
 704     wxMenuItem *item = GetLastMenuItem();
 705
 706     event.Enable(item && item->IsCheckable());
 707 }
 708
 709 void MyFrame::OnGetLabelMenuItem(wxCommandEvent& WXUNUSED(event))
 710 {
 711     wxMenuItem *item = GetLastMenuItem();
 712
 713     if ( item )
 714     {
 715         wxLogMessage(wxT("The label of the last menu item is '%s'"),
 716                      item->GetLabel().c_str());
 717     }
 718 }
 719
 720 void MyFrame::OnSetLabelMenuItem(wxCommandEvent& WXUNUSED(event))
 721 {
 722     wxMenuItem *item = GetLastMenuItem();
 723
 724     if ( item )
 725     {
 726         wxString label = wxGetTextFromUser
 727                          (
 728                             _T("Enter new label: "),
 729                             _T("Change last menu item text"),
 730                             item->GetLabel(),
 731                             this
 732                          );
 733
 734         if ( !label.empty() )
 735         {
 736             item->SetText(label);
 737         }
 738     }
 739 }
 740
 741 void MyFrame::OnGetMenuItemInfo(wxCommandEvent& WXUNUSED(event))
 742 {
 743     wxMenuItem *item = GetLastMenuItem();
 744
 745     if ( item )
 746     {
 747         wxString msg;
 748         msg << _T("The item is ") << (item->IsEnabled() ? _T("enabled")
 749                                                     : _T("disabled"))
 750             << '\n';
 751
 752         if ( item->IsCheckable() )
 753         {
 754             msg << _T("It is checkable and ") << (item->IsChecked() ? _T("") : _T("un"))
 755                 << _T("checked\n");
 756         }
 757
 758 #if wxUSE_ACCEL
 759         wxAcceleratorEntry *accel = item->GetAccel();
 760         if ( accel )
 761         {
 762             msg << _T("Its accelerator is ");
 763
 764             int flags = accel->GetFlags();
 765             if ( flags & wxACCEL_ALT )
 766                 msg << wxT("Alt-");
 767             if ( flags & wxACCEL_CTRL )
 768                 msg << wxT("Ctrl-");
 769             if ( flags & wxACCEL_SHIFT )
 770                 msg << wxT("Shift-");
 771
 772             int code = accel->GetKeyCode();
 773             switch ( code )
 774             {
 775                 case WXK_F1:
 776                 case WXK_F2:
 777                 case WXK_F3:
 778                 case WXK_F4:
 779                 case WXK_F5:
 780                 case WXK_F6:
 781                 case WXK_F7:
 782                 case WXK_F8:
 783                 case WXK_F9:
 784                 case WXK_F10:
 785                 case WXK_F11:
 786                 case WXK_F12:
 787                     msg << wxT('F') << code - WXK_F1 + 1;
 788                     break;
 789
 790                 // if there are any other keys wxGetAccelFromString() may return,
 791                 // we should process them here
 792
 793                 default:
 794                     if ( wxIsalnum(code) )
 795                     {
 796                         msg << (wxChar)code;
 797
 798                         break;
 799                     }
 800
 801                     wxFAIL_MSG( wxT("unknown keyboard accel") );
 802             }
 803
 804             delete accel;
 805         }
 806         else
 807         {
 808             msg << _T("It doesn't have an accelerator");
 809         }
 810 #endif // wxUSE_ACCEL
 811
 812         wxLogMessage(msg);
 813     }
 814 }
 815
 816 void MyFrame::OnFindMenuItem(wxCommandEvent& WXUNUSED(event))
 817 {
 818     wxMenuBar *mbar = GetMenuBar();
 819     size_t count = mbar->GetMenuCount();
 820
 821     wxCHECK_RET( count, _T("no last menu?") );
 822
 823     wxString label = wxGetTextFromUser
 824                      (
 825                         _T("Enter label to search for: "),
 826                         _T("Find menu item"),
 827                         _T(""),
 828                         this
 829                      );
 830
 831     if ( !label.empty() )
 832     {
 833         size_t menuindex = 0;
 834         int index = wxNOT_FOUND;
 835
 836         for (menuindex = 0; (menuindex < count) && (index == wxNOT_FOUND); ++menuindex)
 837         {
 838             index = mbar->FindMenuItem(mbar->GetMenu(menuindex)->GetTitle(), label);
 839         }
 840         if (index == wxNOT_FOUND)
 841         {
 842             wxLogWarning(wxT("No menu item with label '%s'"), label.c_str());
 843         }
 844         else
 845         {
 846             wxLogMessage(wxT("Menu item %d in menu %lu has label '%s'"),
 847                          index, (unsigned long)menuindex, label.c_str());
 848         }
 849     }
 850 }
 851
 852 void MyFrame::ShowContextMenu(const wxPoint& pos)
 853 {
 854     wxMenu menu(_T("Test popup"));
 855
 856     menu.Append(Menu_Help_About, _T("&About"));
 857     menu.Append(Menu_Popup_Submenu, _T("&Submenu"), CreateDummyMenu(NULL));
 858     menu.Append(Menu_Popup_ToBeDeleted, _T("To be &deleted"));
 859     menu.Append(Menu_Popup_ToBeChecked, _T("To be &checked"), _T(""), TRUE);
 860     menu.Append(Menu_Popup_ToBeGreyed, _T("To be &greyed"),
 861                 _T("This menu item should be initially greyed out"));
 862     menu.AppendSeparator();
 863     menu.Append(Menu_File_Quit, _T("E&xit"));
 864
 865     menu.Delete(Menu_Popup_ToBeDeleted);
 866     menu.Check(Menu_Popup_ToBeChecked, TRUE);
 867     menu.Enable(Menu_Popup_ToBeGreyed, FALSE);
 868
 869     PopupMenu(&menu, pos.x, pos.y);
 870
 871     // test for destroying items in popup menus
 872 #if 0 // doesn't work in wxGTK!
 873     menu.Destroy(Menu_Popup_Submenu);
 874
 875     PopupMenu( &menu, event.GetX(), event.GetY() );
 876 #endif // 0
 877 }
 878
 879 void MyFrame::OnTestNormal(wxCommandEvent& event)
 880 {
 881     wxLogMessage(_T("Normal item selected"));
 882 }
 883
 884 void MyFrame::OnTestCheck(wxCommandEvent& event)
 885 {
 886     wxLogMessage(_T("Check item %schecked"),
 887                  event.IsChecked() ? _T("") : _T("un"));
 888 }
 889
 890 void MyFrame::OnTestRadio(wxCommandEvent& event)
 891 {
 892     wxLogMessage(_T("Radio item %d selected"),
 893                  event.GetId() - Menu_Test_Radio1 + 1);
 894 }
 895
 896 void MyFrame::LogMenuOpenOrClose(const wxMenuEvent& event, const wxChar *what)
 897 {
 898     wxLogStatus(this, _T("A %smenu has been %s."),
 899                 event.IsPopup() ? _T("popup ") : _T(""), what);
 900 }
 901
 902 void MyFrame::OnUpdateSubMenuNormal(wxUpdateUIEvent& event)
 903 {
 904     event.Enable(FALSE);
 905 }
 906
 907 void MyFrame::OnUpdateSubMenuCheck(wxUpdateUIEvent& event)
 908 {
 909     event.Enable(TRUE);
 910     event.Check(TRUE);
 911 }
 912
 913 void MyFrame::OnUpdateSubMenuRadio(wxUpdateUIEvent& event)
 914 {
 915     int which = (event.GetId() - Menu_SubMenu_Radio1 + 1);
 916     if (which == 2)
 917         event.Check(TRUE);
 918     else
 919         event.Check(FALSE);
 920 }
 921
 922 void MyFrame::OnSize(wxSizeEvent& event)
 923 {
 924     if ( !m_textctrl )
 925         return;
 926
 927     // leave a band below for popup menu testing
 928     wxSize size = GetClientSize();
 929     m_textctrl->SetSize(0, 0, size.x, (3*size.y)/4);
 930
 931     // this is really ugly but we have to do it as we can't just call
 932     // event.Skip() because wxFrameBase would make the text control fill the
 933     // entire frame then
 934 #ifdef __WXUNIVERSAL__
 935     PositionMenuBar();
 936 #endif // __WXUNIVERSAL__
 937 }
 938