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
  83     void OnAppendMenu(wxCommandEvent& event);
  84     void OnInsertMenu(wxCommandEvent& event);
  85     void OnDeleteMenu(wxCommandEvent& event);
  86     void OnToggleMenu(wxCommandEvent& event);
  87     void OnEnableMenu(wxCommandEvent& event);
  88     void OnGetLabelMenu(wxCommandEvent& event);
  89     void OnSetLabelMenu(wxCommandEvent& event);
  90
  91     void OnRightUp(wxMouseEvent& event);
  92
  93     void OnUpdateCheckMenuItemUI(wxUpdateUIEvent& event);
  94
  95     void OnSize(wxSizeEvent& event);
  96
  97 private:
  98     wxMenu *CreateDummyMenu(wxString *title);
  99
 100     wxMenuItem *GetLastMenuItem() const;
 101
 102     // the menu previously detached from the menubar (may be NULL)
 103     wxMenu *m_menu;
 104
 105     // the count of dummy menus already created
 106     size_t m_countDummy;
 107
 108     // the control used for logging
 109     wxTextCtrl *m_textctrl;
 110
 111     // the previous log target
 112     wxLog *m_logOld;
 113
 114     DECLARE_EVENT_TABLE()
 115 };
 116
 117 // A small helper class which intercepts all menu events and logs them
 118 class MyEvtHandler : public wxEvtHandler
 119 {
 120 public:
 121     MyEvtHandler(MyFrame *frame) { m_frame = frame; }
 122
 123     void OnMenuEvent(wxCommandEvent& event)
 124     {
 125         m_frame->LogMenuEvent(event);
 126
 127         event.Skip();
 128     }
 129
 130 private:
 131     MyFrame *m_frame;
 132
 133     DECLARE_EVENT_TABLE()
 134 };
 135
 136 // ----------------------------------------------------------------------------
 137 // constants
 138 // ----------------------------------------------------------------------------
 139
 140 enum
 141 {
 142     Menu_File_Quit = 100,
 143     Menu_File_ClearLog,
 144
 145     Menu_MenuBar_Toggle = 200,
 146     Menu_MenuBar_Append,
 147     Menu_MenuBar_Insert,
 148     Menu_MenuBar_Delete,
 149     Menu_MenuBar_Enable,
 150     Menu_MenuBar_GetLabel,
 151     Menu_MenuBar_SetLabel,
 152
 153     Menu_Menu_Append = 300,
 154     Menu_Menu_AppendSub,
 155     Menu_Menu_Insert,
 156     Menu_Menu_Delete,
 157     Menu_Menu_Enable,
 158     Menu_Menu_Check,
 159     Menu_Menu_GetLabel,
 160     Menu_Menu_SetLabel,
 161     Menu_Menu_GetInfo,
 162
 163     Menu_Dummy_First = 400,
 164     Menu_Dummy_Second,
 165     Menu_Dummy_Third,
 166     Menu_Dummy_Fourth,
 167     Menu_Dummy_Last,
 168
 169     Menu_Help_About = 1000,
 170
 171     Menu_Popup_ToBeDeleted = 2000,
 172     Menu_Popup_ToBeGreyed,
 173     Menu_Popup_ToBeChecked,
 174     Menu_Popup_Submenu,
 175
 176     Menu_Max
 177 };
 178
 179 // ----------------------------------------------------------------------------
 180 // event tables
 181 // ----------------------------------------------------------------------------
 182
 183 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 184     EVT_MENU(Menu_File_Quit,     MyFrame::OnQuit)
 185     EVT_MENU(Menu_File_ClearLog, MyFrame::OnClearLog)
 186
 187     EVT_MENU(Menu_Help_About, MyFrame::OnAbout)
 188
 189     EVT_MENU(Menu_MenuBar_Toggle,   MyFrame::OnToggleMenu)
 190     EVT_MENU(Menu_MenuBar_Append,   MyFrame::OnAppendMenu)
 191     EVT_MENU(Menu_MenuBar_Insert,   MyFrame::OnInsertMenu)
 192     EVT_MENU(Menu_MenuBar_Delete,   MyFrame::OnDeleteMenu)
 193     EVT_MENU(Menu_MenuBar_Enable,   MyFrame::OnEnableMenu)
 194     EVT_MENU(Menu_MenuBar_GetLabel, MyFrame::OnGetLabelMenu)
 195     EVT_MENU(Menu_MenuBar_SetLabel, MyFrame::OnSetLabelMenu)
 196
 197     EVT_MENU(Menu_Menu_Append,    MyFrame::OnAppendMenuItem)
 198     EVT_MENU(Menu_Menu_AppendSub, MyFrame::OnAppendSubMenu)
 199     EVT_MENU(Menu_Menu_Insert,    MyFrame::OnInsertMenuItem)
 200     EVT_MENU(Menu_Menu_Delete,    MyFrame::OnDeleteMenuItem)
 201     EVT_MENU(Menu_Menu_Enable,    MyFrame::OnEnableMenuItem)
 202     EVT_MENU(Menu_Menu_Check,     MyFrame::OnCheckMenuItem)
 203     EVT_MENU(Menu_Menu_GetLabel,  MyFrame::OnGetLabelMenuItem)
 204     EVT_MENU(Menu_Menu_SetLabel,  MyFrame::OnSetLabelMenuItem)
 205     EVT_MENU(Menu_Menu_GetInfo,   MyFrame::OnGetMenuItemInfo)
 206
 207     EVT_MENU_RANGE(Menu_Dummy_First, Menu_Dummy_Last, MyFrame::OnDummy)
 208
 209     EVT_UPDATE_UI(Menu_Menu_Check, MyFrame::OnUpdateCheckMenuItemUI)
 210
 211     EVT_RIGHT_UP(MyFrame::OnRightUp)
 212
 213     EVT_SIZE(MyFrame::OnSize)
 214 END_EVENT_TABLE()
 215
 216 BEGIN_EVENT_TABLE(MyEvtHandler, wxEvtHandler)
 217     EVT_MENU(-1, MyEvtHandler::OnMenuEvent)
 218 END_EVENT_TABLE()
 219
 220 // ============================================================================
 221 // implementation
 222 // ============================================================================
 223
 224 // ----------------------------------------------------------------------------
 225 // MyApp
 226 // ----------------------------------------------------------------------------
 227
 228 IMPLEMENT_APP(MyApp)
 229
 230 // The `main program' equivalent, creating the windows and returning the
 231 // main frame
 232 bool MyApp::OnInit()
 233 {
 234     // Create the main frame window
 235     MyFrame* frame = new MyFrame;
 236
 237     frame->Show(TRUE);
 238
 239 #if wxUSE_STATUSBAR
 240     frame->SetStatusText("Welcome to wxWindows menu sample");
 241 #endif // wxUSE_STATUSBAR
 242
 243     SetTopWindow(frame);
 244
 245     return TRUE;
 246 }
 247
 248 // ----------------------------------------------------------------------------
 249 // MyFrame
 250 // ----------------------------------------------------------------------------
 251
 252 // Define my frame constructor
 253 MyFrame::MyFrame()
 254        : wxFrame((wxFrame *)NULL, -1, "wxWindows menu sample",
 255                  wxDefaultPosition, wxSize(400, 250))
 256 {
 257     m_textctrl = NULL;
 258     m_menu = NULL;
 259     m_countDummy = 0;
 260     m_logOld = NULL;
 261
 262 #if wxUSE_STATUSBAR
 263     CreateStatusBar();
 264 #endif // wxUSE_STATUSBAR
 265
 266     // create the menubar
 267     wxMenu *fileMenu = new wxMenu;
 268
 269     wxMenuItem *item = new wxMenuItem(fileMenu, Menu_File_ClearLog,
 270                                       "Clear &log\tCtrl-L");
 271     item->SetBitmap(copy_xpm);
 272     fileMenu->Append(item);
 273     fileMenu->AppendSeparator();
 274     fileMenu->Append(Menu_File_Quit, "E&xit\tAlt-X", "Quit menu sample");
 275
 276     wxMenu *menubarMenu = new wxMenu;
 277     menubarMenu->Append(Menu_MenuBar_Append, "&Append menu\tCtrl-A",
 278                         "Append a menu to the menubar");
 279     menubarMenu->Append(Menu_MenuBar_Insert, "&Insert menu\tCtrl-I",
 280                         "Insert a menu into the menubar");
 281     menubarMenu->Append(Menu_MenuBar_Delete, "&Delete menu\tCtrl-D",
 282                         "Delete the last menu from the menubar");
 283     menubarMenu->Append(Menu_MenuBar_Toggle, "&Toggle menu\tCtrl-T",
 284                         "Toggle the first menu in the menubar", TRUE);
 285     menubarMenu->AppendSeparator();
 286     menubarMenu->Append(Menu_MenuBar_Enable, "&Enable menu\tCtrl-E",
 287                         "Enable or disable the last menu", TRUE);
 288     menubarMenu->AppendSeparator();
 289     menubarMenu->Append(Menu_MenuBar_GetLabel, "&Get menu label\tCtrl-G",
 290                         "Get the label of the last menu");
 291     menubarMenu->Append(Menu_MenuBar_SetLabel, "&Set menu label\tCtrl-S",
 292                         "Change the label of the last menu");
 293
 294     wxMenu *menuMenu = new wxMenu;
 295     menuMenu->Append(Menu_Menu_Append, "&Append menu item\tAlt-A",
 296                      "Append a menu item to the last menu");
 297     menuMenu->Append(Menu_Menu_AppendSub, "&Append sub menu\tAlt-S",
 298                      "Append a sub menu to the last menu");
 299     menuMenu->Append(Menu_Menu_Insert, "&Insert menu item\tAlt-I",
 300                      "Insert a menu item in head of the last menu");
 301     menuMenu->Append(Menu_Menu_Delete, "&Delete menu item\tAlt-D",
 302                      "Delete the last menu item from the last menu");
 303     menuMenu->AppendSeparator();
 304     menuMenu->Append(Menu_Menu_Enable, "&Enable menu item\tAlt-E",
 305                      "Enable or disable the last menu item", TRUE);
 306     menuMenu->Append(Menu_Menu_Check, "&Check menu item\tAlt-C",
 307                      "Check or uncheck the last menu item", TRUE);
 308     menuMenu->AppendSeparator();
 309     menuMenu->Append(Menu_Menu_GetLabel, "&Get menu item label\tAlt-G",
 310                      "Get the label of the last menu item");
 311     menuMenu->Append(Menu_Menu_SetLabel, "&Set menu item label\tAlt-S",
 312                      "Change the label of the last menu item");
 313     menuMenu->AppendSeparator();
 314     menuMenu->Append(Menu_Menu_GetInfo, "Get menu item in&fo\tAlt-F",
 315                      "Show the state of the last menu item");
 316
 317     wxMenu *helpMenu = new wxMenu;
 318     helpMenu->Append(Menu_Help_About, "&About\tF1", "About menu sample");
 319
 320     wxMenuBar* menuBar = new wxMenuBar( wxMB_DOCKABLE );
 321
 322     menuBar->Append(fileMenu, "&File");
 323     menuBar->Append(menubarMenu, "Menu&bar");
 324     menuBar->Append(menuMenu, "&Menu");
 325     menuBar->Append(helpMenu, "&Help");
 326
 327     // these items should be initially checked
 328     menuBar->Check(Menu_MenuBar_Toggle, TRUE);
 329     menuBar->Check(Menu_MenuBar_Enable, TRUE);
 330     menuBar->Check(Menu_Menu_Enable, TRUE);
 331     menuBar->Check(Menu_Menu_Check, FALSE);
 332
 333     // associate the menu bar with the frame
 334     SetMenuBar(menuBar);
 335
 336     // intercept all menu events and log them in this custom event handler
 337     PushEventHandler(new MyEvtHandler(this));
 338
 339     // create the log text window
 340     m_textctrl = new wxTextCtrl(this, -1, _T(""),
 341                                 wxDefaultPosition, wxDefaultSize,
 342                                 wxTE_MULTILINE);
 343     m_textctrl->SetEditable(FALSE);
 344
 345     wxLog::SetTimestamp(NULL);
 346     m_logOld = wxLog::SetActiveTarget(new wxLogTextCtrl(m_textctrl));
 347
 348     wxLogMessage(_T("Brief explanations: the commands or the \"Menu\" menu ")
 349                  _T("append/insert/delete items to/from the last menu.\n")
 350                  _T("The commands from \"Menubar\" menu work with the ")
 351                  _T("menubar itself.\n\n")
 352                  _T("Right click the band below to test popup menus.\n"));
 353 }
 354
 355 MyFrame::~MyFrame()
 356 {
 357     delete m_menu;
 358
 359     // delete the event handler installed in ctor
 360     PopEventHandler(TRUE);
 361
 362     // restore old logger
 363     delete wxLog::SetActiveTarget(m_logOld);
 364 }
 365
 366 wxMenu *MyFrame::CreateDummyMenu(wxString *title)
 367 {
 368     wxMenu *menu = new wxMenu;
 369     menu->Append(Menu_Dummy_First, "&First item\tCtrl-F1");
 370     menu->AppendSeparator();
 371     menu->Append(Menu_Dummy_Second, "&Second item\tCtrl-F2", "", TRUE);
 372
 373     if ( title )
 374     {
 375         title->Printf(wxT("Dummy menu &%d"), ++m_countDummy);
 376     }
 377
 378     return menu;
 379 }
 380
 381 wxMenuItem *MyFrame::GetLastMenuItem() const
 382 {
 383     wxMenuBar *menubar = GetMenuBar();
 384     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 385
 386     wxMenuItemList::Node *node = menu->GetMenuItems().GetLast();
 387     if ( !node )
 388     {
 389         wxLogWarning(wxT("No last item in the last menu!"));
 390
 391         return NULL;
 392     }
 393     else
 394     {
 395         return node->GetData();
 396     }
 397 }
 398
 399 void MyFrame::LogMenuEvent(const wxCommandEvent& event)
 400 {
 401     int id = event.GetId();
 402     if ( !GetMenuBar()->FindItem(id) )
 403         return;
 404
 405     wxString msg = wxString::Format(wxT("Menu command %d"), id);
 406     if ( GetMenuBar()->FindItem(id)->IsCheckable() )
 407     {
 408         msg += wxString::Format(wxT(" (the item is currently %schecked)"),
 409                                 event.IsChecked() ? "" : "not ");
 410     }
 411
 412     wxLogMessage(msg);
 413 }
 414
 415 // ----------------------------------------------------------------------------
 416 // menu callbacks
 417 // ----------------------------------------------------------------------------
 418
 419 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 420 {
 421     Close(TRUE);
 422 }
 423
 424 void MyFrame::OnClearLog(wxCommandEvent& WXUNUSED(event))
 425 {
 426     m_textctrl->Clear();
 427 }
 428
 429 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 430 {
 431     (void)wxMessageBox("wxWindows menu sample\n© 1999-2001 Vadim Zeitlin",
 432                        "About wxWindows menu sample",
 433                        wxICON_INFORMATION);
 434 }
 435
 436 void MyFrame::OnDeleteMenu(wxCommandEvent& WXUNUSED(event))
 437 {
 438     wxMenuBar *mbar = GetMenuBar();
 439
 440     size_t count = mbar->GetMenuCount();
 441     if ( count == 2 )
 442     {
 443         // don't let delete the first 2 menus
 444         wxLogError(wxT("Can't delete any more menus"));
 445     }
 446     else
 447     {
 448         delete mbar->Remove(count - 1);
 449     }
 450 }
 451
 452 void MyFrame::OnInsertMenu(wxCommandEvent& WXUNUSED(event))
 453 {
 454     wxString title;
 455     wxMenu *menu = CreateDummyMenu(&title);
 456     GetMenuBar()->Insert(0, menu, title);
 457 }
 458
 459 void MyFrame::OnAppendMenu(wxCommandEvent& WXUNUSED(event))
 460 {
 461     wxString title;
 462     wxMenu *menu = CreateDummyMenu(&title);
 463     GetMenuBar()->Append(menu, title);
 464 }
 465
 466 void MyFrame::OnToggleMenu(wxCommandEvent& WXUNUSED(event))
 467 {
 468     wxMenuBar *mbar = GetMenuBar();
 469     if ( !m_menu )
 470     {
 471         // hide the menu
 472         m_menu = mbar->Remove(0);
 473     }
 474     else
 475     {
 476         // restore it
 477         mbar->Insert(0, m_menu, "&File");
 478         m_menu = NULL;
 479     }
 480 }
 481
 482 void MyFrame::OnEnableMenu(wxCommandEvent& event)
 483 {
 484     wxMenuBar *mbar = GetMenuBar();
 485     size_t count = mbar->GetMenuCount();
 486
 487     mbar->EnableTop(count - 1, event.IsChecked());
 488 }
 489
 490 void MyFrame::OnGetLabelMenu(wxCommandEvent& WXUNUSED(event))
 491 {
 492     wxMenuBar *mbar = GetMenuBar();
 493     size_t count = mbar->GetMenuCount();
 494
 495     wxCHECK_RET( count, _T("no last menu?") );
 496
 497     wxLogMessage(wxT("The label of the last menu item is '%s'"),
 498                  mbar->GetLabelTop(count - 1).c_str());
 499 }
 500
 501 void MyFrame::OnSetLabelMenu(wxCommandEvent& WXUNUSED(event))
 502 {
 503     wxMenuBar *mbar = GetMenuBar();
 504     size_t count = mbar->GetMenuCount();
 505
 506     wxCHECK_RET( count, _T("no last menu?") );
 507
 508     wxString label = wxGetTextFromUser
 509                      (
 510                         _T("Enter new label: "),
 511                         _T("Change last menu text"),
 512                         mbar->GetLabelTop(count - 1),
 513                         this
 514                      );
 515
 516     if ( !label.empty() )
 517     {
 518         mbar->SetLabelTop(count - 1, label);
 519     }
 520 }
 521
 522 void MyFrame::OnDummy(wxCommandEvent& event)
 523 {
 524     wxLogMessage(wxT("Dummy item #%d"), event.GetId() - Menu_Dummy_First + 1);
 525 }
 526
 527 void MyFrame::OnAppendMenuItem(wxCommandEvent& WXUNUSED(event))
 528 {
 529     wxMenuBar *menubar = GetMenuBar();
 530     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 531
 532     menu->AppendSeparator();
 533     menu->Append(Menu_Dummy_Third, "&Third dummy item\tCtrl-F3",
 534                  "Checkable item", TRUE);
 535 }
 536
 537 void MyFrame::OnAppendSubMenu(wxCommandEvent& WXUNUSED(event))
 538 {
 539     wxMenuBar *menubar = GetMenuBar();
 540
 541     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 542
 543     menu->Append(Menu_Dummy_Last, "&Dummy sub menu",
 544                  CreateDummyMenu(NULL), "Dummy sub menu help");
 545 }
 546
 547 void MyFrame::OnDeleteMenuItem(wxCommandEvent& WXUNUSED(event))
 548 {
 549     wxMenuBar *menubar = GetMenuBar();
 550     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 551
 552     size_t count = menu->GetMenuItemCount();
 553     if ( !count )
 554     {
 555         wxLogWarning(wxT("No items to delete!"));
 556     }
 557     else
 558     {
 559         menu->Destroy(menu->GetMenuItems().Item(count - 1)->GetData());
 560     }
 561 }
 562
 563 void MyFrame::OnInsertMenuItem(wxCommandEvent& WXUNUSED(event))
 564 {
 565     wxMenuBar *menubar = GetMenuBar();
 566     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 567
 568     menu->Insert(0, wxMenuItem::New(menu, Menu_Dummy_Fourth,
 569                                     "Fourth dummy item\tCtrl-F4"));
 570     menu->Insert(1, wxMenuItem::New(menu, wxID_SEPARATOR, ""));
 571 }
 572
 573 void MyFrame::OnEnableMenuItem(wxCommandEvent& WXUNUSED(event))
 574 {
 575     wxMenuItem *item = GetLastMenuItem();
 576
 577     if ( item )
 578     {
 579         item->Enable(!item->IsEnabled());
 580     }
 581 }
 582
 583 void MyFrame::OnCheckMenuItem(wxCommandEvent& WXUNUSED(event))
 584 {
 585     wxMenuItem *item = GetLastMenuItem();
 586
 587     item->Toggle();
 588 }
 589
 590 void MyFrame::OnUpdateCheckMenuItemUI(wxUpdateUIEvent& event)
 591 {
 592     wxLogNull nolog;
 593
 594     wxMenuItem *item = GetLastMenuItem();
 595
 596     event.Enable(item && item->IsCheckable());
 597 }
 598
 599 void MyFrame::OnGetLabelMenuItem(wxCommandEvent& WXUNUSED(event))
 600 {
 601     wxMenuItem *item = GetLastMenuItem();
 602
 603     if ( item )
 604     {
 605         wxLogMessage(wxT("The label of the last menu item is '%s'"),
 606                      item->GetLabel().c_str());
 607     }
 608 }
 609
 610 void MyFrame::OnSetLabelMenuItem(wxCommandEvent& WXUNUSED(event))
 611 {
 612     wxMenuItem *item = GetLastMenuItem();
 613
 614     if ( item )
 615     {
 616         wxString label = wxGetTextFromUser
 617                          (
 618                             _T("Enter new label: "),
 619                             _T("Change last menu item text"),
 620                             item->GetLabel(),
 621                             this
 622                          );
 623
 624         if ( !label.empty() )
 625         {
 626             item->SetText(label);
 627         }
 628     }
 629 }
 630
 631 void MyFrame::OnGetMenuItemInfo(wxCommandEvent& WXUNUSED(event))
 632 {
 633     wxMenuItem *item = GetLastMenuItem();
 634
 635     if ( item )
 636     {
 637         wxString msg;
 638         msg << "The item is " << (item->IsEnabled() ? "enabled"
 639                                                     : "disabled")
 640             << '\n';
 641
 642         if ( item->IsCheckable() )
 643         {
 644             msg << "It is checkable and " << (item->IsChecked() ? "" : "un")
 645                 << "checked\n";
 646         }
 647
 648 #if wxUSE_ACCEL
 649         wxAcceleratorEntry *accel = item->GetAccel();
 650         if ( accel )
 651         {
 652             msg << "Its accelerator is ";
 653
 654             int flags = accel->GetFlags();
 655             if ( flags & wxACCEL_ALT )
 656                 msg << wxT("Alt-");
 657             if ( flags & wxACCEL_CTRL )
 658                 msg << wxT("Ctrl-");
 659             if ( flags & wxACCEL_SHIFT )
 660                 msg << wxT("Shift-");
 661
 662             int code = accel->GetKeyCode();
 663             switch ( code )
 664             {
 665                 case WXK_F1:
 666                 case WXK_F2:
 667                 case WXK_F3:
 668                 case WXK_F4:
 669                 case WXK_F5:
 670                 case WXK_F6:
 671                 case WXK_F7:
 672                 case WXK_F8:
 673                 case WXK_F9:
 674                 case WXK_F10:
 675                 case WXK_F11:
 676                 case WXK_F12:
 677                     msg << wxT('F') << code - WXK_F1 + 1;
 678                     break;
 679
 680                 // if there are any other keys wxGetAccelFromString() may return,
 681                 // we should process them here
 682
 683                 default:
 684                     if ( wxIsalnum(code) )
 685                     {
 686                         msg << (wxChar)code;
 687
 688                         break;
 689                     }
 690
 691                     wxFAIL_MSG( wxT("unknown keyboard accel") );
 692             }
 693
 694             delete accel;
 695         }
 696         else
 697         {
 698             msg << "It doesn't have an accelerator";
 699         }
 700 #endif // wxUSE_ACCEL
 701
 702         wxLogMessage(msg);
 703     }
 704 }
 705
 706 void MyFrame::OnRightUp(wxMouseEvent &event)
 707 {
 708     wxMenu menu("Test popup");
 709
 710     menu.Append(Menu_Help_About, "&About");
 711     menu.Append(Menu_Popup_Submenu, "&Submenu", CreateDummyMenu(NULL));
 712     menu.Append(Menu_Popup_ToBeDeleted, "To be &deleted");
 713     menu.Append(Menu_Popup_ToBeChecked, "To be &checked", "", TRUE);
 714     menu.Append(Menu_Popup_ToBeGreyed, "To be &greyed");
 715     menu.AppendSeparator();
 716     menu.Append(Menu_File_Quit, "E&xit");
 717
 718     menu.Delete(Menu_Popup_ToBeDeleted);
 719     menu.Check(Menu_Popup_ToBeChecked, TRUE);
 720     menu.Enable(Menu_Popup_ToBeGreyed, FALSE);
 721
 722     PopupMenu(&menu, event.GetX(), event.GetY());
 723
 724     // test for destroying items in popup menus
 725 #if 0 // doesn't work in wxGTK!
 726     menu.Destroy(Menu_Popup_Submenu);
 727
 728     PopupMenu( &menu, event.GetX(), event.GetY() );
 729 #endif // 0
 730 }
 731
 732 void MyFrame::OnSize(wxSizeEvent& event)
 733 {
 734     if ( !m_textctrl )
 735         return;
 736
 737     // leave a band below for popup menu testing
 738     wxSize size = GetClientSize();
 739     m_textctrl->SetSize(0, 0, size.x, (3*size.y)/4);
 740
 741     // this is really ugly but we have to do it as we can't just call
 742     // event.Skip() because wxFrameBase would make the text control fill the
 743     // entire frame then
 744 #ifdef __WXUNIVERSAL__
 745     PositionMenuBar();
 746 #endif // __WXUNIVERSAL__
 747 }
 748