///////////////////////////////////////////////////////////////////////////// // Name: samples/menu.cpp // Purpose: wxMenu/wxMenuBar sample // Author: Vadim Zeitlin // Modified by: // Created: 01.11.99 // RCS-ID: $Id$ // Copyright: (c) 1999 Vadim Zeitlin // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ // declarations // ============================================================================ // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- // For compilers that support precompilation, includes "wx/wx.h". #include #ifdef __BORLANDC__ #pragma hdrstop #endif #ifndef WX_PRECOMP #include #include #include #include #include #include #endif #if !wxUSE_MENUS // nice try... #error "menu sample requires wxUSE_MENUS=1" #endif // wxUSE_MENUS #include "copy.xpm" // ---------------------------------------------------------------------------- // classes // ---------------------------------------------------------------------------- // Define a new application class MyApp: public wxApp { public: bool OnInit(); }; // Define a new frame class MyFrame: public wxFrame { public: MyFrame(); virtual ~MyFrame(); void LogMenuEvent(const wxCommandEvent& event); protected: void OnQuit(wxCommandEvent& event); void OnClearLog(wxCommandEvent& event); void OnAbout(wxCommandEvent& event); void OnDummy(wxCommandEvent& event); void OnAppendMenuItem(wxCommandEvent& event); void OnAppendSubMenu(wxCommandEvent& event); void OnDeleteMenuItem(wxCommandEvent& event); void OnInsertMenuItem(wxCommandEvent& event); void OnCheckMenuItem(wxCommandEvent& event); void OnEnableMenuItem(wxCommandEvent& event); void OnGetLabelMenuItem(wxCommandEvent& event); void OnSetLabelMenuItem(wxCommandEvent& event); void OnGetMenuItemInfo(wxCommandEvent& event); void OnAppendMenu(wxCommandEvent& event); void OnInsertMenu(wxCommandEvent& event); void OnDeleteMenu(wxCommandEvent& event); void OnToggleMenu(wxCommandEvent& event); void OnEnableMenu(wxCommandEvent& event); void OnGetLabelMenu(wxCommandEvent& event); void OnSetLabelMenu(wxCommandEvent& event); void OnRightUp(wxMouseEvent& event); void OnUpdateCheckMenuItemUI(wxUpdateUIEvent& event); void OnSize(wxSizeEvent& event); private: wxMenu *CreateDummyMenu(wxString *title); wxMenuItem *GetLastMenuItem() const; // the menu previously detached from the menubar (may be NULL) wxMenu *m_menu; // the count of dummy menus already created size_t m_countDummy; // the control used for logging wxTextCtrl *m_textctrl; // the previous log target wxLog *m_logOld; DECLARE_EVENT_TABLE() }; // A small helper class which intercepts all menu events and logs them class MyEvtHandler : public wxEvtHandler { public: MyEvtHandler(MyFrame *frame) { m_frame = frame; } void OnMenuEvent(wxCommandEvent& event) { m_frame->LogMenuEvent(event); event.Skip(); } private: MyFrame *m_frame; DECLARE_EVENT_TABLE() }; // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- enum { Menu_File_Quit = 100, Menu_File_ClearLog, Menu_MenuBar_Toggle = 200, Menu_MenuBar_Append, Menu_MenuBar_Insert, Menu_MenuBar_Delete, Menu_MenuBar_Enable, Menu_MenuBar_GetLabel, Menu_MenuBar_SetLabel, Menu_Menu_Append = 300, Menu_Menu_AppendSub, Menu_Menu_Insert, Menu_Menu_Delete, Menu_Menu_Enable, Menu_Menu_Check, Menu_Menu_GetLabel, Menu_Menu_SetLabel, Menu_Menu_GetInfo, Menu_Dummy_First = 400, Menu_Dummy_Second, Menu_Dummy_Third, Menu_Dummy_Fourth, Menu_Dummy_Last, Menu_Help_About = 1000, Menu_Popup_ToBeDeleted = 2000, Menu_Popup_ToBeGreyed, Menu_Popup_ToBeChecked, Menu_Popup_Submenu, Menu_Max }; // ---------------------------------------------------------------------------- // event tables // ---------------------------------------------------------------------------- BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_MENU(Menu_File_Quit, MyFrame::OnQuit) EVT_MENU(Menu_File_ClearLog, MyFrame::OnClearLog) EVT_MENU(Menu_Help_About, MyFrame::OnAbout) EVT_MENU(Menu_MenuBar_Toggle, MyFrame::OnToggleMenu) EVT_MENU(Menu_MenuBar_Append, MyFrame::OnAppendMenu) EVT_MENU(Menu_MenuBar_Insert, MyFrame::OnInsertMenu) EVT_MENU(Menu_MenuBar_Delete, MyFrame::OnDeleteMenu) EVT_MENU(Menu_MenuBar_Enable, MyFrame::OnEnableMenu) EVT_MENU(Menu_MenuBar_GetLabel, MyFrame::OnGetLabelMenu) EVT_MENU(Menu_MenuBar_SetLabel, MyFrame::OnSetLabelMenu) EVT_MENU(Menu_Menu_Append, MyFrame::OnAppendMenuItem) EVT_MENU(Menu_Menu_AppendSub, MyFrame::OnAppendSubMenu) EVT_MENU(Menu_Menu_Insert, MyFrame::OnInsertMenuItem) EVT_MENU(Menu_Menu_Delete, MyFrame::OnDeleteMenuItem) EVT_MENU(Menu_Menu_Enable, MyFrame::OnEnableMenuItem) EVT_MENU(Menu_Menu_Check, MyFrame::OnCheckMenuItem) EVT_MENU(Menu_Menu_GetLabel, MyFrame::OnGetLabelMenuItem) EVT_MENU(Menu_Menu_SetLabel, MyFrame::OnSetLabelMenuItem) EVT_MENU(Menu_Menu_GetInfo, MyFrame::OnGetMenuItemInfo) EVT_MENU_RANGE(Menu_Dummy_First, Menu_Dummy_Last, MyFrame::OnDummy) EVT_UPDATE_UI(Menu_Menu_Check, MyFrame::OnUpdateCheckMenuItemUI) EVT_RIGHT_UP(MyFrame::OnRightUp) EVT_SIZE(MyFrame::OnSize) END_EVENT_TABLE() BEGIN_EVENT_TABLE(MyEvtHandler, wxEvtHandler) EVT_MENU(-1, MyEvtHandler::OnMenuEvent) END_EVENT_TABLE() // ============================================================================ // implementation // ============================================================================ // ---------------------------------------------------------------------------- // MyApp // ---------------------------------------------------------------------------- IMPLEMENT_APP(MyApp) // The `main program' equivalent, creating the windows and returning the // main frame bool MyApp::OnInit() { // Create the main frame window MyFrame* frame = new MyFrame; frame->Show(TRUE); #if wxUSE_STATUSBAR frame->SetStatusText("Welcome to wxWindows menu sample"); #endif // wxUSE_STATUSBAR SetTopWindow(frame); return TRUE; } // ---------------------------------------------------------------------------- // MyFrame // ---------------------------------------------------------------------------- // Define my frame constructor MyFrame::MyFrame() : wxFrame((wxFrame *)NULL, -1, "wxWindows menu sample", wxDefaultPosition, wxSize(300, 200)) { m_menu = NULL; m_countDummy = 0; m_logOld = NULL; #if wxUSE_STATUSBAR CreateStatusBar(); #endif // wxUSE_STATUSBAR // create the menubar wxMenu *fileMenu = new wxMenu; wxMenuItem *item = new wxMenuItem(fileMenu, Menu_File_ClearLog, "Clear &log\tCtrl-L"); item->SetBitmap(copy_xpm); fileMenu->Append(item); fileMenu->AppendSeparator(); fileMenu->Append(Menu_File_Quit, "E&xit\tAlt-X", "Quit menu sample"); wxMenu *menubarMenu = new wxMenu; menubarMenu->Append(Menu_MenuBar_Append, "&Append menu\tCtrl-A", "Append a menu to the menubar"); menubarMenu->Append(Menu_MenuBar_Insert, "&Insert menu\tCtrl-I", "Insert a menu into the menubar"); menubarMenu->Append(Menu_MenuBar_Delete, "&Delete menu\tCtrl-D", "Delete the last menu from the menubar"); menubarMenu->Append(Menu_MenuBar_Toggle, "&Toggle menu\tCtrl-T", "Toggle the first menu in the menubar", TRUE); menubarMenu->AppendSeparator(); menubarMenu->Append(Menu_MenuBar_Enable, "&Enable menu\tCtrl-E", "Enable or disable the last menu", TRUE); menubarMenu->AppendSeparator(); menubarMenu->Append(Menu_MenuBar_GetLabel, "&Get menu label\tCtrl-G", "Get the label of the last menu"); menubarMenu->Append(Menu_MenuBar_SetLabel, "&Set menu label\tCtrl-S", "Change the label of the last menu"); wxMenu *menuMenu = new wxMenu; menuMenu->Append(Menu_Menu_Append, "&Append menu item\tAlt-A", "Append a menu item to the last menu"); menuMenu->Append(Menu_Menu_AppendSub, "&Append sub menu\tAlt-S", "Append a sub menu to the last menu"); menuMenu->Append(Menu_Menu_Insert, "&Insert menu item\tAlt-I", "Insert a menu item in head of the last menu"); menuMenu->Append(Menu_Menu_Delete, "&Delete menu item\tAlt-D", "Delete the last menu item from the last menu"); menuMenu->AppendSeparator(); menuMenu->Append(Menu_Menu_Enable, "&Enable menu item\tAlt-E", "Enable or disable the last menu item", TRUE); menuMenu->Append(Menu_Menu_Check, "&Check menu item\tAlt-C", "Check or uncheck the last menu item", TRUE); menuMenu->AppendSeparator(); menuMenu->Append(Menu_Menu_GetLabel, "&Get menu item label\tAlt-G", "Get the label of the last menu item"); menuMenu->Append(Menu_Menu_SetLabel, "&Set menu item label\tAlt-S", "Change the label of the last menu item"); menuMenu->AppendSeparator(); menuMenu->Append(Menu_Menu_GetInfo, "Get menu item in&fo\tAlt-F", "Show the state of the last menu item"); wxMenu *helpMenu = new wxMenu; helpMenu->Append(Menu_Help_About, "&About\tF1", "About menu sample"); wxMenuBar* menuBar = new wxMenuBar( wxMB_DOCKABLE ); menuBar->Append(fileMenu, "&File"); menuBar->Append(menubarMenu, "Menu&bar"); menuBar->Append(menuMenu, "&Menu"); menuBar->Append(helpMenu, "&Help"); // these items should be initially checked menuBar->Check(Menu_MenuBar_Toggle, TRUE); menuBar->Check(Menu_MenuBar_Enable, TRUE); menuBar->Check(Menu_Menu_Enable, TRUE); menuBar->Check(Menu_Menu_Check, FALSE); // associate the menu bar with the frame SetMenuBar(menuBar); // intercept all menu events and log them in this custom event handler PushEventHandler(new MyEvtHandler(this)); // create the log text window m_textctrl = new wxTextCtrl(this, -1, _T(""), wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE); m_textctrl->SetEditable(FALSE); m_logOld = wxLog::SetActiveTarget(new wxLogTextCtrl(m_textctrl)); wxLogMessage(_T("Brief explanations: the commands or the \"Menu\" menu\n") _T("append/insert/delete items to/from the last menu.\n") _T("The commands from \"Menubar\" menu work with the\n") _T("menubar itself.\n") _T("Right click the band below to test popup menus.\n")); } MyFrame::~MyFrame() { delete m_menu; // delete the event handler installed in ctor PopEventHandler(TRUE); // restore old logger delete wxLog::SetActiveTarget(m_logOld); } wxMenu *MyFrame::CreateDummyMenu(wxString *title) { wxMenu *menu = new wxMenu; menu->Append(Menu_Dummy_First, "&First item\tCtrl-F1"); menu->AppendSeparator(); menu->Append(Menu_Dummy_Second, "&Second item\tCtrl-F2", "", TRUE); if ( title ) { title->Printf("Dummy menu &%d", ++m_countDummy); } return menu; } wxMenuItem *MyFrame::GetLastMenuItem() const { wxMenuBar *menubar = GetMenuBar(); wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1); wxMenuItemList::Node *node = menu->GetMenuItems().GetLast(); if ( !node ) { wxLogWarning("No last item in the last menu!"); return NULL; } else { return node->GetData(); } } void MyFrame::LogMenuEvent(const wxCommandEvent& event) { int id = event.GetId(); if ( !GetMenuBar()->FindItem(id) ) return; wxString msg = wxString::Format("Menu command %d", id); if ( GetMenuBar()->FindItem(id)->IsCheckable() ) { msg += wxString::Format(" (the item is currently %schecked)", event.IsChecked() ? "" : "not "); } wxLogMessage(msg); } // ---------------------------------------------------------------------------- // menu callbacks // ---------------------------------------------------------------------------- void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) { Close(TRUE); } void MyFrame::OnClearLog(wxCommandEvent& WXUNUSED(event)) { m_textctrl->Clear(); } void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) { (void)wxMessageBox("wxWindows menu sample\nŠ 1999-2001 Vadim Zeitlin", "About wxWindows menu sample", wxICON_INFORMATION); } void MyFrame::OnDeleteMenu(wxCommandEvent& WXUNUSED(event)) { wxMenuBar *mbar = GetMenuBar(); size_t count = mbar->GetMenuCount(); if ( count == 2 ) { // don't let delete the first 2 menus wxLogError("Can't delete any more menus"); } else { delete mbar->Remove(count - 1); } } void MyFrame::OnInsertMenu(wxCommandEvent& WXUNUSED(event)) { wxString title; wxMenu *menu = CreateDummyMenu(&title); GetMenuBar()->Insert(0, menu, title); } void MyFrame::OnAppendMenu(wxCommandEvent& WXUNUSED(event)) { wxString title; wxMenu *menu = CreateDummyMenu(&title); GetMenuBar()->Append(menu, title); } void MyFrame::OnToggleMenu(wxCommandEvent& WXUNUSED(event)) { wxMenuBar *mbar = GetMenuBar(); if ( !m_menu ) { // hide the menu m_menu = mbar->Remove(0); } else { // restore it mbar->Insert(0, m_menu, "&File"); m_menu = NULL; } } void MyFrame::OnEnableMenu(wxCommandEvent& event) { wxMenuBar *mbar = GetMenuBar(); size_t count = mbar->GetMenuCount(); mbar->EnableTop(count - 1, event.IsChecked()); } void MyFrame::OnGetLabelMenu(wxCommandEvent& WXUNUSED(event)) { wxMenuBar *mbar = GetMenuBar(); size_t count = mbar->GetMenuCount(); wxLogMessage("The label of the last menu item is '%s'", mbar->GetLabelTop(count - 1).c_str()); } void MyFrame::OnSetLabelMenu(wxCommandEvent& WXUNUSED(event)) { wxMenuBar *mbar = GetMenuBar(); size_t count = mbar->GetMenuCount(); mbar->SetLabelTop(count - 1, "Dummy label &0"); } void MyFrame::OnDummy(wxCommandEvent& event) { wxLogMessage("Dummy item #%d", event.GetId() - Menu_Dummy_First + 1); } void MyFrame::OnAppendMenuItem(wxCommandEvent& WXUNUSED(event)) { wxMenuBar *menubar = GetMenuBar(); wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1); menu->AppendSeparator(); menu->Append(Menu_Dummy_Third, "&Third dummy item\tCtrl-F3", "Checkable item", TRUE); } void MyFrame::OnAppendSubMenu(wxCommandEvent& WXUNUSED(event)) { wxMenuBar *menubar = GetMenuBar(); wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1); menu->Append(Menu_Dummy_Last, "&Dummy sub menu", CreateDummyMenu(NULL), "Dummy sub menu help"); } void MyFrame::OnDeleteMenuItem(wxCommandEvent& WXUNUSED(event)) { wxMenuBar *menubar = GetMenuBar(); wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1); size_t count = menu->GetMenuItemCount(); if ( !count ) { wxLogWarning("No items to delete!"); } else { menu->Destroy(menu->GetMenuItems().Item(count - 1)->GetData()); } } void MyFrame::OnInsertMenuItem(wxCommandEvent& WXUNUSED(event)) { wxMenuBar *menubar = GetMenuBar(); wxMenu *menu = menubar->GetMenu(menubar->GetMenuCount() - 1); menu->Insert(0, wxMenuItem::New(menu, Menu_Dummy_Fourth, "Fourth dummy item\tCtrl-F4")); menu->Insert(1, wxMenuItem::New(menu, wxID_SEPARATOR, "")); } void MyFrame::OnEnableMenuItem(wxCommandEvent& WXUNUSED(event)) { wxMenuItem *item = GetLastMenuItem(); if ( item ) { item->Enable(!item->IsEnabled()); } } void MyFrame::OnCheckMenuItem(wxCommandEvent& WXUNUSED(event)) { wxMenuItem *item = GetLastMenuItem(); item->Toggle(); } void MyFrame::OnUpdateCheckMenuItemUI(wxUpdateUIEvent& event) { wxLogNull nolog; wxMenuItem *item = GetLastMenuItem(); event.Enable(item && item->IsCheckable()); } void MyFrame::OnGetLabelMenuItem(wxCommandEvent& WXUNUSED(event)) { wxMenuItem *item = GetLastMenuItem(); if ( item ) { wxLogMessage("The label of the last menu item is '%s'", item->GetLabel().c_str()); } } void MyFrame::OnSetLabelMenuItem(wxCommandEvent& WXUNUSED(event)) { wxMenuItem *item = GetLastMenuItem(); if ( item ) { item->SetText("Dummy menu item text"); } } void MyFrame::OnGetMenuItemInfo(wxCommandEvent& WXUNUSED(event)) { wxMenuItem *item = GetLastMenuItem(); if ( item ) { wxString msg; msg << "The item is " << (item->IsEnabled() ? "enabled" : "disabled") << '\n'; if ( item->IsCheckable() ) { msg << "It is checkable and " << (item->IsChecked() ? "" : "un") << "checked\n"; } #if wxUSE_ACCEL wxAcceleratorEntry *accel = item->GetAccel(); if ( accel ) { msg << "Its accelerator is "; int flags = accel->GetFlags(); if ( flags & wxACCEL_ALT ) msg << wxT("Alt-"); if ( flags & wxACCEL_CTRL ) msg << wxT("Ctrl-"); if ( flags & wxACCEL_SHIFT ) msg << wxT("Shift-"); int code = accel->GetKeyCode(); switch ( code ) { case WXK_F1: case WXK_F2: case WXK_F3: case WXK_F4: case WXK_F5: case WXK_F6: case WXK_F7: case WXK_F8: case WXK_F9: case WXK_F10: case WXK_F11: case WXK_F12: msg << wxT('F') << code - WXK_F1 + 1; break; // if there are any other keys wxGetAccelFromString() may return, // we should process them here default: if ( wxIsalnum(code) ) { msg << (wxChar)code; break; } wxFAIL_MSG( wxT("unknown keyboard accel") ); } delete accel; } else { msg << "It doesn't have an accelerator"; } #endif // wxUSE_ACCEL wxLogMessage(msg); } } void MyFrame::OnRightUp(wxMouseEvent &event) { wxMenu menu("Test popup"); menu.Append(Menu_Help_About, "&About"); menu.Append(Menu_Popup_Submenu, "&Submenu", CreateDummyMenu(NULL)); menu.Append(Menu_Popup_ToBeDeleted, "To be &deleted"); menu.Append(Menu_Popup_ToBeChecked, "To be &checked", "", TRUE); menu.Append(Menu_Popup_ToBeGreyed, "To be &greyed"); menu.AppendSeparator(); menu.Append(Menu_File_Quit, "E&xit"); menu.Delete(Menu_Popup_ToBeDeleted); menu.Check(Menu_Popup_ToBeChecked, TRUE); menu.Enable(Menu_Popup_ToBeGreyed, FALSE); PopupMenu(&menu, event.GetX(), event.GetY()); // test for destroying items in popup menus #if 0 // doesn't work in wxGTK! menu.Destroy(Menu_Popup_Submenu); PopupMenu( &menu, event.GetX(), event.GetY() ); #endif // 0 } void MyFrame::OnSize(wxSizeEvent& event) { // leave a band below for popup menu testing wxSize size = GetClientSize(); m_textctrl->SetSize(0, 0, size.x, (3*size.y)/4); // this is really ugly but we have to do it as we can't just call // event.Skip() because wxFrameBase would make the text control fill the // entire frame then #ifdef __WXUNIVERSAL__ PositionMenuBar(); #endif // __WXUNIVERSAL__ }