settings.h

#ifndef settings_h
#define settings_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        A.H. Bril
 Date:          4-11-1995
 RCS:           $Id: settings.h,v 1.12 2009-10-05 06:00:22 cvsnanne Exp $
________________________________________________________________________


-*/

#include "iopar.h"


mClass Settings : public IOPar
{
public:

    inline static Settings&     common() { return fetch(); }

    static Settings&            fetch(const char* settings_name=0);

    bool                        write(bool read_before=true) const;
    bool                        reRead()        { return doRead(false); }

    static Settings*            fetchExternal(const char* settings_name,
                                              const char* dtect_user,
                                              const char* usr_settings_dir);

protected:

                                Settings( const char* fnm )
                                    : fname(fnm)                {}
                                ~Settings()                     {}

    FileNameString              fname;

    static Settings*            doFetch(const char*,const char*,const char*,
                                        bool);
    bool                        doRead(bool);
};


#define mSettUse(fn,basekey,key,value) \
        Settings::common().fn( IOPar::compKey(basekey,key), value )

#define mSettGet(basekey,key) \
        Settings::common()[ IOPar::compKey(basekey,key) ]

#define mSettWrite() \
        Settings::common().write();

#endif