OSCAR-code/SleepLib/preferences.h

/*

SleepLib Preferences Header

Author: Mark Watkins <jedimark64@users.sourceforge.net>
License: GPL

*/

#ifndef PREFERENCES_H
#define PREFERENCES_H

#include <QString>
#include <QVariant>
#include <QHash>
#include <QDomElement>
#include <QDomDocument>
#include <map>


const QString AppName="SleepyHead"; // Outer tag of XML files
const QString AppRoot="SleepApp";    // The Folder Name

extern const QString & GetAppRoot(); //returns app root path plus trailing path separator.

inline QString PrefMacro(QString s)
{
    return "{"+s+"}";
};

const QString & getUserName();

class Preferences
{
public:
    Preferences(QString name,QString filename="");
    Preferences();
    virtual ~Preferences();

    const QString Get(QString name);
    //const QString Get(const char * name) {
//        return Get(name);
  //  };
    const QString Get(int code) {
        return Get(p_codes[code]);
    };

    // operator[] will not expand {} macros

    QVariant & operator[](QString name) {
        return p_preferences[name];
    };
    QVariant & operator[](int code) {
        return p_preferences[p_codes[code]];
    };

    void Set(QString name,QVariant value) {
        p_preferences[name]=value;
    };
    void Set(int code,QVariant value) {
        Set(p_codes[code],value);
    };

    bool Exists(QString name) {
        return (p_preferences.find(name)!=p_preferences.end());
    };

    virtual void ExtraLoad(QDomElement & root) { root=root; }
    virtual QDomElement ExtraSave(QDomDocument & doc) { doc=doc; QDomElement e; return e; }

    virtual bool Open(QString filename="");
    virtual bool Save(QString filename="");

    void SetComment(const QString & str) {
        p_comment=str;
    };
    int  GetCode(QString name); // For registering/looking up new preference code.

    QHash<QString,QVariant> p_preferences;
protected:
    QHash<int,QString> p_codes;
    QString p_comment;
    QString p_name;
    QString p_filename;
    QString p_path;
};


extern Preferences pref;
extern Preferences laypref;

#endif // PREFERENCES_H