///////////////////////////////////////////////////////////////////////////// // Name: minimal.cpp // Purpose: Minimal wxWindows sample // Author: Julian Smart // Modified by: // Created: 04/01/98 // RCS-ID: $Id$ // Copyright: (c) Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ // declarations // ============================================================================ // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- #ifdef __GNUG__ #pragma implementation "minimal.cpp" #pragma interface "minimal.cpp" #endif // For compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop #endif // for all others, include the necessary headers (this file is usually all you // need because it includes almost all "standard" wxWindows headers #ifndef WX_PRECOMP #include "wx/wx.h" #endif // ---------------------------------------------------------------------------- // ressources // ---------------------------------------------------------------------------- // the application icon #if defined(__WXGTK__) || defined(__WXMOTIF__) #include "mondrian.xpm" #endif // ---------------------------------------------------------------------------- // private classes // ---------------------------------------------------------------------------- // Define a new application type, each program should derive a class from wxApp class MyApp : public wxApp { public: // override base class virtuals // ---------------------------- // this one is called on application startup and is a good place for the app // initialization (doing it here and not in the ctor allows to have an error // return: if OnInit() returns false, the application terminates) virtual bool OnInit(); }; // Define a new frame type: this is going to be our main frame class MyFrame : public wxFrame { public: // ctor(s) MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size); // event handlers (these functions should _not_ be virtual) void OnQuit(wxCommandEvent& event); void OnAbout(wxCommandEvent& event); private: // any class wishing to process wxWindows events must use this macro DECLARE_EVENT_TABLE() }; // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- // IDs for the controls and the menu commands enum { // menu items Minimal_Quit = 1, Minimal_About, Minimal_Test1, Minimal_Test2, // controls start here (the numbers are, of course, arbitrary) Minimal_Text = 1000, }; // ---------------------------------------------------------------------------- // event tables and other macros for wxWindows // ---------------------------------------------------------------------------- // the event tables connect the wxWindows 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) EVT_MENU(Minimal_Quit, MyFrame::OnQuit) EVT_MENU(Minimal_About, MyFrame::OnAbout) END_EVENT_TABLE() // Create a new application object: this macro will allow wxWindows 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 // not wxApp) IMPLEMENT_APP(MyApp) // ============================================================================ // implementation // ============================================================================ // ---------------------------------------------------------------------------- // the application class // ---------------------------------------------------------------------------- // `Main program' equivalent: the program execution "starts" here bool MyApp::OnInit() { // Create the main application window MyFrame *frame = new MyFrame("Minimal wxWindows App", wxPoint(50, 50), wxSize(450, 340)); // Show it and tell the application that it's our main window // @@@ what does it do exactly, in fact? is it necessary here? frame->Show(TRUE); SetTopWindow(frame); // success: wxApp::OnRun() will be called which will enter the main message // loop and the application will run. If we returned FALSE here, the // application would exit immediately. return TRUE; } // ---------------------------------------------------------------------------- // main frame // ---------------------------------------------------------------------------- // frame constructor MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) : wxFrame((wxFrame *)NULL, -1, title, pos, size) { // set the frame icon SetIcon(wxICON(mondrian)); // create a menu bar wxMenu *menuFile = new wxMenu(wxMENU_TEAROFF); menuFile->Append(Minimal_About, "&About...\tCtrl-A", "Show about dialog"); menuFile->AppendSeparator(); menuFile->Append(Minimal_Quit, "E&xit\tAlt-X", "Quit this program"); // now append the freshly created menu to the menu bar... wxMenuBar *menuBar = new wxMenuBar(); menuBar->Append(menuFile, "&File"); // ... and attach this menu bar to the frame SetMenuBar(menuBar); // create a status bar just for fun (by default with 1 pane only) CreateStatusBar(2); SetStatusText("Welcome to wxWindows!"); } // event handlers void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) { // TRUE is to force the frame to close Close(TRUE); } void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) { wxString msg; msg.Printf( _T("This is the about dialog of minimal sample.\n") _T("Welcome to %s") #ifdef wxBETA_NUMBER _T(" (beta %d)!") #endif // wxBETA_NUMBER , wxVERSION_STRING #ifdef wxBETA_NUMBER , wxBETA_NUMBER #endif // wxBETA_NUMBER ); wxMessageBox(msg, "About Minimal", wxOK | wxICON_INFORMATION, this); }