C:/Programs/source/NIREP/Interface/wxNirepApp.h

// Name:        wxnirepapp.h
// Purpose:     Is the startup file that wxWidgets requires.  This will create
//              the Interface which is the first interactive screen the user
//              will see.  Also, this will display a splash screen when NIREP is
//              started.  Finally, this file allows a user to double click an nd3
//              file and have NIREP either start and create the display or if NIREP
//              is already running, create the display.
// Author:      James Harris II
// Modified by: Gary E. Christensen
// Created:     25/01/2008 15:55:45
// RCS-ID:      
// Copyright:   All rights reserved
// Licence:     

#ifndef _WXNIREPAPP_H_
#define _WXNIREPAPP_H_

#include "wx/image.h"
#include "Interface.h"
#include "wx/cmdline.h"  // Added 6/7/2010 GEC for cmd line processing
#include "wx/ipc.h"      // Added 6/7/2010 GEC for inter process communication
#include "wx/snglinst.h" // Added 6/7/2010 GEC for single instance checker 


// Added 6/7/2010 GEC for command line parsing, Adapted from Chapt 20
// Cross-Platform GUI Programming with wxWidgets by Julian Smart and Kevin Hock
static const wxCmdLineEntryDesc g_cmdLineDesc[] = {
    //{ wxCMD_LINE_SWITCH, wxT("h"), wxT("help"), wxT("displays help on the command line parameters") },
    //{ wxCMD_LINE_SWITCH, wxT("v"), wxT("version"), wxT("print version") },
    //{ wxCMD_LINE_PARAM, NULL, NULL, wxT("input file"), wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
    { wxCMD_LINE_SWITCH, "h", "help", "displays help on the command line parameters" },
    { wxCMD_LINE_SWITCH, "v", "version", "print version" },
    { wxCMD_LINE_PARAM, NULL, NULL, "input file", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
    { wxCMD_LINE_NONE }
};

//
//  Programmer: Gary E. Christensen
//  Date: 6/7/2010
//  The following code insures that only a single instance of nirep is running at a time.
//  The following code setups a server if it is the first instance of the program.
//  Otherwise, it sets itself up as a client and makes a connection to the server.
//  Assuming that the client started by double clicking on a display description, the
//  client will pass the filename of the display description to the server and then exit.
//  If the display description is already open, then the view will be brought to the forground.  
//  Otherwise, nirep will open the dispaly description and bring the new window to the forground.
//
//  References: Chapt 20 in Cross-Platform, GUI Programming with wxWidgets by Julian Smart 
//  and Kevin Hock with Stefan Csomor, 2006 Pearson Education, Inc.
//  See wxWidgets-2.8.11\utils\helpview\src\helpview.h(cpp)
//  See wxWidgets-2.8.11\samples\ipc\client.h(cpp) and server.h(cpp)
//
//  Notes: IPC is short for inter process communication.
//
#if wxUSE_IPC

// Server class, for listening to connection requests
class nirepServer : public wxServer{
public:
        wxConnectionBase * OnAcceptConnection(const wxString & topic);
};

//Connection class, for use by both communicating instances
class nirepConnection : public wxConnection{
public:
        nirepConnection() {};
        ~nirepConnection() {};

        bool OnExecute(const wxString & topic, wxChar * data, int size, wxIPCFormat format);
};

// Client class, to be used by subsequent instances in OnInit
class nirepClient : public wxClient{
public:
        nirepClient() {};
        wxConnectionBase * OnMakeConnection() { return new nirepConnection; }
};

#endif

class WxNIREPApp: public wxApp
{    
    DECLARE_CLASS( WxNIREPApp )
    DECLARE_EVENT_TABLE()

public:
    WxNIREPApp();
    ~WxNIREPApp();

    void Init();

    virtual bool OnInit();

    virtual int OnExit();

    void CreateStyles();

    wxRichTextStyleSheet* GetStyleSheet() const { return m_styleSheet; }

    wxRichTextPrinting* GetPrinting() const { return m_printing; }

    wxRichTextStyleSheet*   m_styleSheet;
    wxRichTextPrinting*     m_printing;

private:
  Interface* mainWindow;

// Added 6/7/2010 GEC for inter process communication and single instance
#if wxUSE_IPC
    nirepServer * m_server;
        wxSingleInstanceChecker * m_singleInstanceChecker;
#endif


};

DECLARE_APP(WxNIREPApp)

#endif  // _WXNIREPAPP_H_