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/wx.h>
  29
  30     #include <wx/log.h>
  31 #endif
  32
  33 // ----------------------------------------------------------------------------
  34 // classes
  35 // ----------------------------------------------------------------------------
  36
  37 // Define a new application
  38 class MyApp: public wxApp
  39 {
  40 public:
  41     bool OnInit();
  42 };
  43
  44 // Define a new frame
  45 class MyFrame: public wxFrame
  46 {
  47 public:
  48     MyFrame();
  49
  50     virtual ~MyFrame() { delete m_menu; }
  51
  52     void OnQuit(wxCommandEvent& event);
  53     void OnAbout(wxCommandEvent& event);
  54
  55     void OnDummy(wxCommandEvent& event);
  56
  57     void OnAppendMenuItem(wxCommandEvent& event);
  58     void OnAppendSubMenu(wxCommandEvent& event);
  59     void OnDeleteMenuItem(wxCommandEvent& event);
  60     void OnInsertMenuItem(wxCommandEvent& event);
  61     void OnCheckMenuItem(wxCommandEvent& event);
  62     void OnEnableMenuItem(wxCommandEvent& event);
  63     void OnGetLabelMenuItem(wxCommandEvent& event);
  64     void OnSetLabelMenuItem(wxCommandEvent& event);
  65
  66     void OnAppendMenu(wxCommandEvent& event);
  67     void OnDeleteMenu(wxCommandEvent& event);
  68     void OnToggleMenu(wxCommandEvent& event);
  69     void OnEnableMenu(wxCommandEvent& event);
  70     void OnGetLabelMenu(wxCommandEvent& event);
  71     void OnSetLabelMenu(wxCommandEvent& event);
  72
  73     void OnRightDown(wxMouseEvent& event);
  74
  75     void OnUpdateCheckMenuItemUI(wxUpdateUIEvent& event);
  76
  77 private:
  78     wxMenu *CreateDummyMenu();
  79
  80     wxMenuItem *GetLastMenuItem() const;
  81
  82     wxMenu     *m_menu;
  83
  84     DECLARE_EVENT_TABLE()
  85 };
  86
  87 // ----------------------------------------------------------------------------
  88 // constants
  89 // ----------------------------------------------------------------------------
  90
  91 enum
  92 {
  93     Menu_File_Quit = 100,
  94
  95     Menu_MenuBar_Toggle = 200,
  96     Menu_MenuBar_Append,
  97     Menu_MenuBar_Delete,
  98     Menu_MenuBar_Enable,
  99     Menu_MenuBar_GetLabel,
 100     Menu_MenuBar_SetLabel,
 101
 102     Menu_Menu_Append = 300,
 103     Menu_Menu_AppendSub,
 104     Menu_Menu_Insert,
 105     Menu_Menu_Delete,
 106     Menu_Menu_Enable,
 107     Menu_Menu_Check,
 108     Menu_Menu_GetLabel,
 109     Menu_Menu_SetLabel,
 110
 111     Menu_Dummy_First = 400,
 112     Menu_Dummy_Second,
 113     Menu_Dummy_Third,
 114     Menu_Dummy_Fourth,
 115     Menu_Dummy_Last,
 116
 117     Menu_Help_About = 1000,
 118
 119     Menu_Popup_ToBeDeleted = 2000,
 120     Menu_Popup_ToBeGreyed,
 121     Menu_Popup_ToBeChecked,
 122     Menu_Popup_Submenu,
 123
 124     Menu_Max
 125 };
 126
 127 // ----------------------------------------------------------------------------
 128 // event tables
 129 // ----------------------------------------------------------------------------
 130
 131 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 132     EVT_MENU(Menu_File_Quit, MyFrame::OnQuit)
 133
 134     EVT_MENU(Menu_Help_About, MyFrame::OnAbout)
 135
 136     EVT_MENU(Menu_MenuBar_Toggle,   MyFrame::OnToggleMenu)
 137     EVT_MENU(Menu_MenuBar_Append,   MyFrame::OnAppendMenu)
 138     EVT_MENU(Menu_MenuBar_Delete,   MyFrame::OnDeleteMenu)
 139     EVT_MENU(Menu_MenuBar_Enable,   MyFrame::OnEnableMenu)
 140     EVT_MENU(Menu_MenuBar_GetLabel, MyFrame::OnGetLabelMenu)
 141     EVT_MENU(Menu_MenuBar_SetLabel, MyFrame::OnSetLabelMenu)
 142
 143     EVT_MENU(Menu_Menu_Append,    MyFrame::OnAppendMenuItem)
 144     EVT_MENU(Menu_Menu_AppendSub, MyFrame::OnAppendSubMenu)
 145     EVT_MENU(Menu_Menu_Insert,    MyFrame::OnInsertMenuItem)
 146     EVT_MENU(Menu_Menu_Delete,    MyFrame::OnDeleteMenuItem)
 147     EVT_MENU(Menu_Menu_Enable,    MyFrame::OnEnableMenuItem)
 148     EVT_MENU(Menu_Menu_Check,    MyFrame::OnCheckMenuItem)
 149     EVT_MENU(Menu_Menu_GetLabel,  MyFrame::OnGetLabelMenuItem)
 150     EVT_MENU(Menu_Menu_SetLabel,  MyFrame::OnSetLabelMenuItem)
 151
 152     EVT_MENU_RANGE(Menu_Dummy_First, Menu_Dummy_Last, MyFrame::OnDummy)
 153
 154     EVT_UPDATE_UI(Menu_Menu_Check, MyFrame::OnUpdateCheckMenuItemUI)
 155
 156     EVT_RIGHT_DOWN(MyFrame::OnRightDown)
 157 END_EVENT_TABLE()
 158
 159 // ============================================================================
 160 // implementation
 161 // ============================================================================
 162
 163 // ----------------------------------------------------------------------------
 164 // MyApp
 165 // ----------------------------------------------------------------------------
 166
 167 IMPLEMENT_APP(MyApp)
 168
 169 // The `main program' equivalent, creating the windows and returning the
 170 // main frame
 171 bool MyApp::OnInit()
 172 {
 173     // Create the main frame window
 174     MyFrame* frame = new MyFrame;
 175
 176     frame->Show(TRUE);
 177
 178     frame->SetStatusText("Hello, wxWindows");
 179
 180     SetTopWindow(frame);
 181
 182     return TRUE;
 183 }
 184
 185 // ----------------------------------------------------------------------------
 186 // MyFrame
 187 // ----------------------------------------------------------------------------
 188
 189 // Define my frame constructor
 190 MyFrame::MyFrame()
 191        : wxFrame((wxFrame *)NULL, -1, "wxWindows menu sample",
 192                  wxDefaultPosition, wxSize(300, 200))
 193 {
 194     m_menu = NULL;
 195
 196     CreateStatusBar();
 197
 198     // create the menubar
 199     wxMenu *fileMenu = new wxMenu;
 200     fileMenu->Append(Menu_File_Quit, "E&xit\tAlt-X", "Quit toolbar sample" );
 201
 202     wxMenu *menubarMenu = new wxMenu;
 203     menubarMenu->Append(Menu_MenuBar_Append, "&Append menu\tCtrl-A",
 204                         "Append a menu to the menubar");
 205     menubarMenu->Append(Menu_MenuBar_Delete, "&Delete menu\tCtrl-D",
 206                         "Delete the last menu from the menubar");
 207     menubarMenu->Append(Menu_MenuBar_Toggle, "&Toggle menu\tCtrl-T",
 208                         "Toggle the first menu in the menubar", TRUE);
 209     menubarMenu->AppendSeparator();
 210     menubarMenu->Append(Menu_MenuBar_Enable, "&Enable menu\tCtrl-E",
 211                         "Enable or disable the last menu", TRUE);
 212     menubarMenu->AppendSeparator();
 213     menubarMenu->Append(Menu_MenuBar_GetLabel, "&Get menu label\tCtrl-G",
 214                         "Get the label of the last menu");
 215     menubarMenu->Append(Menu_MenuBar_SetLabel, "&Set menu label\tCtrl-S",
 216                         "Change the label of the last menu");
 217
 218     wxMenu *menuMenu = new wxMenu;
 219     menuMenu->Append(Menu_Menu_Append, "&Append menu item\tAlt-A",
 220                      "Append a menu item to the last menu");
 221     menuMenu->Append(Menu_Menu_AppendSub, "&Append sub menu\tAlt-S",
 222                      "Append a sub menu to the last menu");
 223     menuMenu->Append(Menu_Menu_Insert, "&Insert menu item\tAlt-I",
 224                      "Insert a menu item in head of the last menu");
 225     menuMenu->Append(Menu_Menu_Delete, "&Delete menu item\tAlt-D",
 226                      "Delete the last menu item from the last menu");
 227     menuMenu->AppendSeparator();
 228     menuMenu->Append(Menu_Menu_Enable, "&Enable menu item\tAlt-E",
 229                      "Enable or disable the last menu item", TRUE);
 230     menuMenu->Append(Menu_Menu_Check, "&Check menu item\tAlt-C",
 231                      "Check or uncheck the last menu item", TRUE);
 232     menuMenu->AppendSeparator();
 233     menuMenu->Append(Menu_Menu_GetLabel, "&Get menu item label\tAlt-G",
 234                      "Get the label of the last menu item");
 235     menuMenu->Append(Menu_Menu_SetLabel, "&Set menu item label\tAlt-S",
 236                      "Change the label of the last menu item");
 237
 238     wxMenu *helpMenu = new wxMenu;
 239     helpMenu->Append(Menu_Help_About, "&About\tF1", "About menu sample");
 240
 241     wxMenuBar* menuBar = new wxMenuBar( wxMB_DOCKABLE );
 242
 243     menuBar->Append(fileMenu, "&File");
 244     menuBar->Append(menubarMenu, "Menu&bar");
 245     menuBar->Append(menuMenu, "&Menu");
 246     menuBar->Append(helpMenu, "&Help");
 247
 248     // these items should be initially checked
 249     menuBar->Check(Menu_MenuBar_Toggle, TRUE);
 250     menuBar->Check(Menu_MenuBar_Enable, TRUE);
 251     menuBar->Check(Menu_Menu_Enable, TRUE);
 252     menuBar->Check(Menu_Menu_Check, FALSE);
 253
 254     // associate the menu bar with the frame
 255     SetMenuBar(menuBar);
 256 }
 257
 258 wxMenu *MyFrame::CreateDummyMenu()
 259 {
 260     wxMenu *menu = new wxMenu;
 261     menu->Append(Menu_Dummy_First, "First item\tCtrl-F1");
 262     menu->AppendSeparator();
 263     menu->Append(Menu_Dummy_Second, "Second item\tCtrl-F2", "", TRUE);
 264
 265     return menu;
 266 }
 267
 268 wxMenuItem *MyFrame::GetLastMenuItem() const
 269 {
 270     wxMenuBar *menubar = GetMenuBar();
 271     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 272
 273     wxMenuItemList::Node *node = menu->GetMenuItems().GetLast();
 274     if ( !node )
 275     {
 276         wxLogWarning("No last item in the last menu!");
 277
 278         return NULL;
 279     }
 280     else
 281     {
 282         return node->GetData();
 283     }
 284 }
 285
 286 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 287 {
 288     Close(TRUE);
 289 }
 290
 291 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 292 {
 293     (void)wxMessageBox("wxWindows toolbar sample",
 294                        "About wxWindows menu sample",
 295                        wxICON_INFORMATION);
 296 }
 297
 298 void MyFrame::OnDeleteMenu(wxCommandEvent& WXUNUSED(event))
 299 {
 300     wxMenuBar *mbar = GetMenuBar();
 301
 302     size_t count = mbar->GetMenuCount();
 303     if ( count == 2 )
 304     {
 305         // don't let delete the first 2 menus
 306         wxLogError("Can't delete any more menus");
 307     }
 308     else
 309     {
 310         delete mbar->Remove(count - 1);
 311     }
 312 }
 313
 314 void MyFrame::OnAppendMenu(wxCommandEvent& WXUNUSED(event))
 315 {
 316     static int s_count = 0;
 317
 318     wxString title;
 319     title.Printf("Dummy menu &%d", ++s_count);
 320
 321     GetMenuBar()->Append(CreateDummyMenu(), title);
 322 }
 323
 324 void MyFrame::OnToggleMenu(wxCommandEvent& WXUNUSED(event))
 325 {
 326     wxMenuBar *mbar = GetMenuBar();
 327     if ( !m_menu )
 328     {
 329         // hide the menu
 330         m_menu = mbar->Remove(0);
 331     }
 332     else
 333     {
 334         // restore it
 335         mbar->Insert(0, m_menu, "&File");
 336         m_menu = NULL;
 337     }
 338 }
 339
 340 void MyFrame::OnEnableMenu(wxCommandEvent& WXUNUSED(event))
 341 {
 342     wxMenuBar *mbar = GetMenuBar();
 343     size_t count = mbar->GetMenuCount();
 344
 345     static bool s_enabled = TRUE;
 346
 347     s_enabled = !s_enabled;
 348     mbar->EnableTop(count - 1, s_enabled);
 349 }
 350
 351 void MyFrame::OnGetLabelMenu(wxCommandEvent& WXUNUSED(event))
 352 {
 353     wxMenuBar *mbar = GetMenuBar();
 354     size_t count = mbar->GetMenuCount();
 355
 356     wxLogMessage("The label of the last menu item is '%s'",
 357                  mbar->GetLabelTop(count - 1).c_str());
 358 }
 359
 360 void MyFrame::OnSetLabelMenu(wxCommandEvent& WXUNUSED(event))
 361 {
 362     wxMenuBar *mbar = GetMenuBar();
 363     size_t count = mbar->GetMenuCount();
 364
 365     mbar->SetLabelTop(count - 1, "Dummy label &0");
 366 }
 367
 368 void MyFrame::OnDummy(wxCommandEvent& event)
 369 {
 370     wxString s;
 371     s.Printf("Dummy item #%d", event.GetId() - Menu_Dummy_First + 1);
 372     wxMessageBox(s, "Menu sample", wxICON_INFORMATION);
 373 }
 374
 375 void MyFrame::OnAppendMenuItem(wxCommandEvent& WXUNUSED(event))
 376 {
 377     wxMenuBar *menubar = GetMenuBar();
 378     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 379
 380     menu->AppendSeparator();
 381     menu->Append(Menu_Dummy_Third, "Third dummy item\tCtrl-F3",
 382                  "Checkable item", TRUE);
 383 }
 384
 385 void MyFrame::OnAppendSubMenu(wxCommandEvent& WXUNUSED(event))
 386 {
 387     wxMenuBar *menubar = GetMenuBar();
 388     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 389
 390     menu->Append(Menu_Dummy_Last, "Dummy sub menu\tCtrl-F12",
 391                  CreateDummyMenu());
 392 }
 393
 394 void MyFrame::OnDeleteMenuItem(wxCommandEvent& WXUNUSED(event))
 395 {
 396     wxMenuBar *menubar = GetMenuBar();
 397     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 398
 399     size_t count = menu->GetMenuItemCount();
 400     if ( !count )
 401     {
 402         wxLogWarning("No items to delete!");
 403     }
 404     else
 405     {
 406         menu->Destroy(menu->GetMenuItems().Item(count - 1)->GetData());
 407     }
 408 }
 409
 410 void MyFrame::OnInsertMenuItem(wxCommandEvent& WXUNUSED(event))
 411 {
 412     wxMenuBar *menubar = GetMenuBar();
 413     wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1);
 414
 415     menu->Insert(0, wxMenuItem::New(menu, Menu_Dummy_Fourth,
 416                                     "Fourth dummy item\tCtrl-F4"));
 417     menu->Insert(1, wxMenuItem::New(menu, wxID_SEPARATOR, ""));
 418 }
 419
 420 void MyFrame::OnEnableMenuItem(wxCommandEvent& WXUNUSED(event))
 421 {
 422     wxMenuItem *item = GetLastMenuItem();
 423
 424     if ( item )
 425     {
 426         item->Enable(!item->IsEnabled());
 427     }
 428 }
 429
 430 void MyFrame::OnCheckMenuItem(wxCommandEvent& WXUNUSED(event))
 431 {
 432     wxMenuItem *item = GetLastMenuItem();
 433
 434     item->Toggle();
 435 }
 436
 437 void MyFrame::OnUpdateCheckMenuItemUI(wxUpdateUIEvent& event)
 438 {
 439     wxMenuItem *item = GetLastMenuItem();
 440
 441     event.Enable(item && item->IsCheckable());
 442 }
 443
 444 void MyFrame::OnGetLabelMenuItem(wxCommandEvent& WXUNUSED(event))
 445 {
 446     wxMenuItem *item = GetLastMenuItem();
 447
 448     if ( item )
 449     {
 450         wxLogMessage("The label of the last menu item is '%s'",
 451                      item->GetLabel().c_str());
 452     }
 453 }
 454
 455 void MyFrame::OnSetLabelMenuItem(wxCommandEvent& WXUNUSED(event))
 456 {
 457     wxMenuItem *item = GetLastMenuItem();
 458
 459     if ( item )
 460     {
 461         item->SetText("Dummy menu item text");
 462     }
 463 }
 464
 465 void MyFrame::OnRightDown(wxMouseEvent &event )
 466 {
 467     wxMenu menu("Test popup");
 468
 469     menu.Append(Menu_Help_About, "&About");
 470     menu.Append(Menu_Popup_Submenu, "Submenu", CreateDummyMenu());
 471     menu.Append(Menu_Popup_ToBeDeleted, "To be deleted");
 472     menu.Append(Menu_Popup_ToBeChecked, "To be checked", "", TRUE);
 473     menu.Append(Menu_Popup_ToBeGreyed, "To be greyed");
 474     menu.AppendSeparator();
 475     menu.Append(Menu_File_Quit, "E&xit");
 476
 477     menu.Delete(Menu_Popup_ToBeDeleted);
 478     menu.Check(Menu_Popup_ToBeChecked, TRUE);
 479     menu.Enable(Menu_Popup_ToBeGreyed, FALSE);
 480
 481     PopupMenu( &menu, event.GetX(), event.GetY() );
 482 }