pip/pivariant.h

/*! \file pivariant.h
 * \brief Variant type
 * 
 * This file declares PIVariant
*/
/*
    PIP - Platform Independent Primitives
    Variant type
    Copyright (C) 2014  Ivan Pelipenko peri4ko@gmail.com

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef PIVARIANT_H
#define PIVARIANT_H

#include "pistring.h"
#include "pibitarray.h"
#include "pitime.h"
#include "pimath.h"

#define __PIVARIANT_UNION_SIZE__ 32

#define _vcomplexd (*((complexd*)_vraw))
#define _vcomplexld (*((complexld*)_vraw))
#define _vtime (*((PITime*)_vraw))
#define _vdate (*((PIDate*)_vraw))
#define _vdatetime (*((PIDateTime*)_vraw))
#define _vsystime (*((PISystemTime*)_vraw))

#define _vvcomplexd(v) (*((complexd*)v._vraw))
#define _vvcomplexld(v) (*((complexld*)v._vraw))
#define _vvtime(v) (*((PITime*)v._vraw))
#define _vvdate(v) (*((PIDate*)v._vraw))
#define _vvdatetime(v) (*((PIDateTime*)v._vraw))
#define _vvsystime(v) (*((PISystemTime*)v._vraw))

class PIP_EXPORT PIVariant {
public:
	enum Type {
		Invalid = 0,
		Bool,
		Char,
		UChar,
		Short,
		UShort,
		Int,
		UInt,
		Long,
		ULong,
		LLong,
		ULLong,
		Float,
		Double,
		LDouble,
		Complexd,
		Complexld,
		BitArray,
		ByteArray,
		String,
		StringList,
		Time,
		Date,
		DateTime,
		SystemTime/*,
		Custom = 0xFF*/
	};
	
	PIVariant();
	PIVariant(const char * v) {setValue(PIString(v));}
	PIVariant(const bool v) {setValue(v);}
	PIVariant(const char v) {setValue(v);}
	PIVariant(const uchar v) {setValue(v);}
	PIVariant(const short v) {setValue(v);}
	PIVariant(const ushort v) {setValue(v);}
	PIVariant(const int & v) {setValue(v);}
	PIVariant(const uint & v) {setValue(v);}
	PIVariant(const long & v) {setValue(v);}
	PIVariant(const ulong & v) {setValue(v);}
	PIVariant(const llong & v) {setValue(v);}
	PIVariant(const ullong & v) {setValue(v);}
	PIVariant(const float & v) {setValue(v);}
	PIVariant(const double & v) {setValue(v);}
	PIVariant(const ldouble & v) {setValue(v);}
	PIVariant(const complexd & v) {setValue(v);}
	PIVariant(const complexld & v) {setValue(v);}
	PIVariant(const PIBitArray & v) {setValue(v);}
	PIVariant(const PIByteArray & v) {setValue(v);}
	PIVariant(const PIString & v) {setValue(v);}
	PIVariant(const PIStringList & v) {setValue(v);}
	PIVariant(const PITime & v) {setValue(v);}
	PIVariant(const PIDate & v) {setValue(v);}
	PIVariant(const PIDateTime & v) {setValue(v);}
	PIVariant(const PISystemTime & v) {setValue(v);}
	
	void setValue(const char * v) {setValue(PIString(v));}
	void setValue(const bool v) {type_ = PIVariant::Bool; _vint = (v ? 1 : 0);}
	void setValue(const char v) {type_ = PIVariant::Char; _vint = v;}
	void setValue(const uchar v) {type_ = PIVariant::UChar; _vint = v;}
	void setValue(const short v) {type_ = PIVariant::Short; _vint = v;}
	void setValue(const ushort v) {type_ = PIVariant::UShort; _vint = v;}
	void setValue(const int & v) {type_ = PIVariant::Int; _vint = v;}
	void setValue(const uint & v) {type_ = PIVariant::UInt; _vint = v;}
	void setValue(const long & v) {type_ = PIVariant::Long; _vint = v;}
	void setValue(const ulong & v) {type_ = PIVariant::ULong; _vint = v;}
	void setValue(const llong & v) {type_ = PIVariant::LLong; _vllong = v;}
	void setValue(const ullong & v) {type_ = PIVariant::ULLong; _vllong = v;}
	void setValue(const float & v) {type_ = PIVariant::Float; _vfloat = v;}
	void setValue(const double & v) {type_ = PIVariant::Double; _vdouble = v;}
	void setValue(const ldouble & v) {type_ = PIVariant::LDouble; _vldouble = v;}
	void setValue(const complexd & v) {type_ = PIVariant::Complexd; _vcomplexd = v;}
	void setValue(const complexld & v) {type_ = PIVariant::Complexld; _vcomplexld = v;}
	void setValue(const PIBitArray & v) {type_ = PIVariant::BitArray; _vbitarray = v;}
	void setValue(const PIByteArray & v) {type_ = PIVariant::ByteArray; _vbytearray = v;}
	void setValue(const PIString & v) {type_ = PIVariant::String; _vstring = v;}
	void setValue(const PIStringList & v) {type_ = PIVariant::StringList; _vstringlist = v;}
	void setValue(const PITime & v) {type_ = PIVariant::Time; _vtime = v;}
	void setValue(const PIDate & v) {type_ = PIVariant::Date; _vdate = v;}
	void setValue(const PIDateTime & v) {type_ = PIVariant::DateTime; _vdatetime = v;}
	void setValue(const PISystemTime & v) {type_ = PIVariant::SystemTime; _vsystime = v;}
	
	bool toBool() const;
	int toInt() const;
	llong toLLong() const;
	float toFloat() const;
	double toDouble() const;
	ldouble toLDouble() const;
	complexd toComplexd() const;
	complexld toComplexld() const;
	PITime toTime() const;
	PIDate toDate() const;
	PIDateTime toDateTime() const;
	PISystemTime toSystemTime() const;
	PIString toString() const;
	PIStringList toStringList() const;
	PIBitArray toBitArray() const;
	PIByteArray toByteArray() const;
	
	void operator =(const PIVariant & v);
	void operator =(const char * v) {setValue(PIString(v));}
	void operator =(const bool v) {setValue(v);}
	void operator =(const char v) {setValue(v);}
	void operator =(const uchar v) {setValue(v);}
	void operator =(const short v) {setValue(v);}
	void operator =(const ushort v) {setValue(v);}
	void operator =(const int & v) {setValue(v);}
	void operator =(const uint & v) {setValue(v);}
	void operator =(const long & v) {setValue(v);}
	void operator =(const ulong & v) {setValue(v);}
	void operator =(const llong & v) {setValue(v);}
	void operator =(const ullong & v) {setValue(v);}
	void operator =(const float & v) {setValue(v);}
	void operator =(const double & v) {setValue(v);}
	void operator =(const ldouble & v) {setValue(v);}
	void operator =(const complexd & v) {setValue(v);}
	void operator =(const complexld & v) {setValue(v);}
	void operator =(const PIBitArray & v) {setValue(v);}
	void operator =(const PIByteArray & v) {setValue(v);}
	void operator =(const PIString & v) {setValue(v);}
	void operator =(const PIStringList & v) {setValue(v);}
	void operator =(const PITime & v) {setValue(v);}
	void operator =(const PIDate & v) {setValue(v);}
	void operator =(const PIDateTime & v) {setValue(v);}
	void operator =(const PISystemTime & v) {setValue(v);}
	
	bool operator ==(const PIVariant & v) const;
	bool operator !=(const PIVariant & v) const {return !(*this == v);}
	
	PIVariant::Type type() const {return type_;}
	PIString typeName() const {return typeName(type_);}
	
	bool isValid() const {return type_ != PIVariant::Invalid;}
	
	static PIVariant::Type typeFromName(const PIString & tname);
	static PIString typeName(PIVariant::Type type);
	
private:
	union {
		int _vint;
		llong _vllong;
		float _vfloat;
		double _vdouble;
		ldouble _vldouble;
		uchar _vraw[__PIVARIANT_UNION_SIZE__];
		/*complexd _vcomplexd;
		complexld _vcomplexld;
		PITime _vtime;
		PIDate _vdate;
		PIDateTime _vdatetime;
		PISystemTime _vsystime;*/
	};
	PIBitArray _vbitarray;
	PIByteArray _vbytearray;
	PIString _vstring;
	PIStringList _vstringlist;
	PIVariant::Type type_;
	
};


inline PICout operator <<(PICout s, const PIVariant & v) {s.space(); s.setControl(0, true); s << "PIVariant(" << PIVariant::typeName(v.type()) << ", " << v.toString() << ")"; s.restoreControl(); return s;}


#endif // PIVARIANT_H