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- /////////////////////////////////////////////////////////////////////////////
- // Name: minimal.cpp
- // Purpose: Minimal wxWindows sample
- // Author: Julian Smart
- // Modified by:
- // Created: 04/01/98
- // Copyright: (c) Julian Smart
- // Licence: wxWindows licence
- /////////////////////////////////////////////////////////////////////////////
- // ============================================================================
- // declarations
- // ============================================================================
- // ----------------------------------------------------------------------------
- // headers
- // ----------------------------------------------------------------------------
- // 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
- // ----------------------------------------------------------------------------
- // resources
- // ----------------------------------------------------------------------------
- // ----------------------------------------------------------------------------
- // 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);
- // 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 = wxID_EXIT,
- // it is important for the id corresponding to the "About" command to have
- // this standard value as otherwise it won't be handled properly under Mac
- // (where it is special and put into the "Apple" menu)
- Minimal_About = wxID_ABOUT
- };
- // ----------------------------------------------------------------------------
- // 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 implements 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(wxT("Minimal wxWindows App"));
- // and show it (the frames, unlike simple controls, are not shown when
- // created initially)
- 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
- // application would exit immediately.
- return true;
- }
- // ----------------------------------------------------------------------------
- // main frame
- // ----------------------------------------------------------------------------
- // frame constructor
- MyFrame::MyFrame(const wxString& title)
- : wxFrame(NULL, wxID_ANY, title)
- {
- // set the frame icon
- #if wxUSE_MENUS
- // create a menu bar
- wxMenu *menuFile = new wxMenu;
- // the "About" item should be in the help menu
- wxMenu *helpMenu = new wxMenu;
- helpMenu->Append(Minimal_About, wxT("&About\tF1"), wxT("Show about dialog"));
- menuFile->Append(Minimal_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program"));
- // now append the freshly created menu to the menu bar...
- wxMenuBar *menuBar = new wxMenuBar();
- menuBar->Append(menuFile, wxT("&File"));
- menuBar->Append(helpMenu, wxT("&Help"));
- // ... and attach this menu bar to the frame
- SetMenuBar(menuBar);
- #endif // wxUSE_MENUS
- #if wxUSE_STATUSBAR
- // create a status bar just for fun (by default with 1 pane only)
- CreateStatusBar(2);
- SetStatusText(wxT("Welcome to wxWindows!"));
- #endif // wxUSE_STATUSBAR
- }
- // 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( wxT("This is the About dialog of the minimal sample.\n")
- wxT("Welcome to %s"), wxVERSION_STRING);
- wxMessageBox(msg, wxT("About Minimal"), wxOK | wxICON_INFORMATION, this);
- }
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