X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4ec2df6cbc126adc3a5d9e337f057327430e28c3..02fd8b9b6186623ed61019ac7e69ed9a4ef16773:/samples/event/event.cpp diff --git a/samples/event/event.cpp b/samples/event/event.cpp index 6a68b78ae6..2b9c5850fb 100644 --- a/samples/event/event.cpp +++ b/samples/event/event.cpp @@ -1,6 +1,6 @@ ///////////////////////////////////////////////////////////////////////////// // Name: event.cpp -// Purpose: wxWindows sample demonstrating different event usage +// Purpose: wxWidgets sample demonstrating different event usage // Author: Vadim Zeitlin // Modified by: // Created: 31.01.01 @@ -17,13 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - // DO NOT use event.cpp here, it breaks statics initialization in - // src/common/event.cpp and nothing works at all then! - #pragma implementation "eventsample.cpp" - #pragma interface "eventsample.cpp" -#endif - // For compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" @@ -32,7 +25,7 @@ #endif // for all others, include the necessary headers (this file is usually all you -// need because it includes almost all "standard" wxWindows headers) +// need because it includes almost all "standard" wxWidgets headers) #ifndef WX_PRECOMP #include "wx/wx.h" #endif @@ -59,8 +52,8 @@ DEFINE_EVENT_TYPE(wxEVT_MY_CUSTOM_COMMAND) // it may also be convenient to define an event table macro for this event type #define EVT_MY_CUSTOM_COMMAND(id, fn) \ DECLARE_EVENT_TABLE_ENTRY( \ - wxEVT_MY_CUSTOM_COMMAND, id, -1, \ - (wxObjectEventFunction)(wxEventFunction)(wxCommandEventFunction)&fn, \ + wxEVT_MY_CUSTOM_COMMAND, id, wxID_ANY, \ + (wxObjectEventFunction)(wxEventFunction) wxStaticCastEvent( wxCommandEventFunction, &fn ), \ (wxObject *) NULL \ ), @@ -104,10 +97,10 @@ public: protected: // number of pushed event handlers - size_t m_nPush; + unsigned m_nPush; private: - // any class wishing to process wxWindows events must use this macro + // any class wishing to process wxWidgets events must use this macro DECLARE_EVENT_TABLE() }; @@ -127,7 +120,7 @@ public: } private: - size_t m_level; + unsigned m_level; DECLARE_EVENT_TABLE() }; @@ -159,10 +152,10 @@ enum }; // ---------------------------------------------------------------------------- -// event tables and other macros for wxWindows +// event tables and other macros for wxWidgets // ---------------------------------------------------------------------------- -// the event tables connect the wxWindows events with the functions (event +// the event tables connect the wxWidgets events with the functions (event // handlers) which process them. It can be also done at run-time, but for the // simple menu events like this the static method is much simpler. BEGIN_EVENT_TABLE(MyFrame, wxFrame) @@ -178,14 +171,18 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_UPDATE_UI(Event_Pop, MyFrame::OnUpdateUIPop) - EVT_MY_CUSTOM_COMMAND(-1, MyFrame::OnProcessCustom) + EVT_MY_CUSTOM_COMMAND(wxID_ANY, MyFrame::OnProcessCustom) + + // the line below would also work if OnProcessCustom() were defined as + // taking a wxEvent (as required by EVT_CUSTOM) and not wxCommandEvent + //EVT_CUSTOM(wxEVT_MY_CUSTOM_COMMAND, wxID_ANY, MyFrame::OnProcessCustom) END_EVENT_TABLE() BEGIN_EVENT_TABLE(MyEvtHandler, wxEvtHandler) EVT_MENU(Event_Test, MyEvtHandler::OnTest) END_EVENT_TABLE() -// Create a new application object: this macro will allow wxWindows to create +// Create a new application object: this macro will allow wxWidgets to create // the application object during program execution (it's better than using a // static object for many reasons) and also declares the accessor function // wxGetApp() which will return the reference of the right type (i.e. MyApp and @@ -203,18 +200,21 @@ IMPLEMENT_APP(MyApp) // 'Main program' equivalent: the program execution "starts" here bool MyApp::OnInit() { + if ( !wxApp::OnInit() ) + return false; + // create the main application window - MyFrame *frame = new MyFrame(_T("Event wxWindows Sample"), + MyFrame *frame = new MyFrame(_T("Event wxWidgets Sample"), wxPoint(50, 50), wxSize(600, 340)); // and show it (the frames, unlike simple controls, are not shown when // created initially) - frame->Show(TRUE); + frame->Show(true); // success: wxApp::OnRun() will be called which will enter the main message - // loop and the application will run. If we returned FALSE here, the + // loop and the application will run. If we returned false here, the // application would exit immediately. - return TRUE; + return true; } // ---------------------------------------------------------------------------- @@ -223,7 +223,7 @@ bool MyApp::OnInit() // frame constructor MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) - : wxFrame((wxFrame *)NULL, -1, title, pos, size) + : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size) { // init members m_nPush = 0; @@ -238,7 +238,7 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) wxMenu *menuEvent = new wxMenu; menuEvent->Append(Event_Connect, _T("&Connect\tCtrl-C"), _T("Connect or disconnect the dynamic event handler"), - TRUE /* checkable */); + true /* checkable */); menuEvent->Append(Event_Dynamic, _T("&Dynamic event\tCtrl-D"), _T("Dynamic event sample - only works after Connect")); menuEvent->AppendSeparator(); @@ -262,7 +262,7 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) #if wxUSE_STATUSBAR CreateStatusBar(3); - SetStatusText(_T("Welcome to wxWindows event sample")); + SetStatusText(_T("Welcome to wxWidgets event sample")); SetStatusText(_T("Dynamic: off"), Status_Dynamic); SetStatusText(_T("Push count: 0"), Status_Push); #endif // wxUSE_STATUSBAR @@ -274,7 +274,7 @@ MyFrame::~MyFrame() // crashes! while ( m_nPush-- != 0 ) { - PopEventHandler(TRUE /* delete handler */); + PopEventHandler(true /* delete handler */); } } @@ -284,15 +284,15 @@ MyFrame::~MyFrame() void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) { - // TRUE is to force the frame to close - Close(TRUE); + // true is to force the frame to close + Close(true); } void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) { - wxMessageBox(_T("Event sample shows different ways of using events\n" - "© 2001 Vadim Zeitlin"), - _T("About Event Sample"), wxOK | wxICON_INFORMATION, this); + wxMessageBox( wxT("Event sample shows different ways of using events\n") + wxT("(c) 2001 Vadim Zeitlin"), + wxT("About Event Sample"), wxOK | wxICON_INFORMATION, this ); } // ---------------------------------------------------------------------------- @@ -301,9 +301,12 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) void MyFrame::OnDynamic(wxCommandEvent& WXUNUSED(event)) { - wxMessageBox(_T("This is a dynamic event handler which can be connected " - "and disconnected during run-time."), - _T("Dynamic Event Handler"), wxOK | wxICON_INFORMATION, this); + wxMessageBox + ( + wxT("This is a dynamic event handler which can be connected ") + wxT("and disconnected at run-time."), + wxT("Dynamic Event Handler"), wxOK | wxICON_INFORMATION, this + ); } void MyFrame::OnConnect(wxCommandEvent& event) @@ -311,20 +314,24 @@ void MyFrame::OnConnect(wxCommandEvent& event) if ( event.IsChecked() ) { // disconnect - Connect(Event_Dynamic, -1, wxEVT_COMMAND_MENU_SELECTED, + Connect(Event_Dynamic, wxID_ANY, wxEVT_COMMAND_MENU_SELECTED, (wxObjectEventFunction) (wxEventFunction) (wxCommandEventFunction)&MyFrame::OnDynamic); +#if wxUSE_STATUSBAR SetStatusText(_T("You can now use \"Dynamic\" item in the menu")); SetStatusText(_T("Dynamic: on"), Status_Dynamic); +#endif // wxUSE_STATUSBAR } else // connect { - Disconnect(Event_Dynamic, -1, wxEVT_COMMAND_MENU_SELECTED); + Disconnect(Event_Dynamic, wxID_ANY, wxEVT_COMMAND_MENU_SELECTED); +#if wxUSE_STATUSBAR SetStatusText(_T("You can no more use \"Dynamic\" item in the menu")); SetStatusText(_T("Dynamic: off"), Status_Dynamic); +#endif // wxUSE_STATUSBAR } } @@ -336,20 +343,24 @@ void MyFrame::OnPushEventHandler(wxCommandEvent& WXUNUSED(event)) { PushEventHandler(new MyEvtHandler(++m_nPush)); +#if wxUSE_STATUSBAR SetStatusText(wxString::Format(_T("Push count: %u"), m_nPush), Status_Push); +#endif // wxUSE_STATUSBAR } void MyFrame::OnPopEventHandler(wxCommandEvent& WXUNUSED(event)) { wxCHECK_RET( m_nPush, _T("this command should be disabled!") ); - PopEventHandler(TRUE /* delete handler */); + PopEventHandler(true /* delete handler */); m_nPush--; +#if wxUSE_STATUSBAR SetStatusText(wxString::Format(_T("Push count: %u"), m_nPush), Status_Push); +#endif // wxUSE_STATUSBAR } -void MyFrame::OnTest(wxCommandEvent& event) +void MyFrame::OnTest(wxCommandEvent& WXUNUSED(event)) { wxLogMessage(_T("This is the test event handler in the main frame")); } @@ -363,14 +374,14 @@ void MyFrame::OnUpdateUIPop(wxUpdateUIEvent& event) // custom event methods // ---------------------------------------------------------------------------- -void MyFrame::OnFireCustom(wxCommandEvent& event) +void MyFrame::OnFireCustom(wxCommandEvent& WXUNUSED(event)) { wxCommandEvent eventCustom(wxEVT_MY_CUSTOM_COMMAND); wxPostEvent(this, eventCustom); } -void MyFrame::OnProcessCustom(wxCommandEvent& event) +void MyFrame::OnProcessCustom(wxCommandEvent& WXUNUSED(event)) { wxLogMessage(_T("Got a custom event!")); }