/*
 * $Header$
 * $Log$
 */

#ifndef __XSELEMENTS_H
#define __XSELEMENTS_H

#include <TObject.h>
#include <TObjArray.h>

enum Element_State {
	Element_GroundState,
	Element_Metastable,
	Element_SecondMetastable
};

/* =================== XSElement ===================== */
class XSElement : public TObject
{
protected:
	Int_t	z;
	char	*name;
	char	*symbol;

	char	*atomic_weight;
	char	*density;
	char	*melting_point;
	char	*boiling_point;
	char	*oxidation_states;

	Int_t	ni;
	char	**isotope;
	char	**isotope_info;
	Bool_t	*isotope_stable;

public:
	XSElement();
	~XSElement();

	inline	char*	Name()		const { return name; }
	inline	char*	Mnemonic()	const { return symbol; }
	inline	char*	Symbol()	const { return symbol; }
	inline	char*	AtomicWeight()	const { return atomic_weight; }
	inline	char*	Density()	const { return density; }
	inline	char*	MeltingPt()	const { return melting_point; }
	inline	char*	BoilingPt()	const { return boiling_point; }
	inline	char*	Oxidation()	const { return oxidation_states; }
	inline	Int_t	Isotopes()	const { return ni; }
	inline	char*	Isotope(int i)	const { return isotope[i]; }
		const char*	IsotopeInfo(const char *isotope);
	inline	char*	IsotopeInfo(int i)
					const { return isotope_info[i]; }
	inline	Bool_t	IsStable(int i)	const { return isotope_stable[i]; }

		void	Read(FILE *f);
                Int_t   Read(const char *name) { return TObject::Read(name); }
protected:
		char*	ReadLine(FILE *f);
	//ClassDef(XSElement,1)
}; // XSElement

/* =================== XSElements ===================== */
class XSElements : public TObject
{
protected:
	UInt_t		NElements;
	TObjArray	*elements;

public:
	XSElements( const char *filename );
	~XSElements();

	inline	UInt_t	GetSize()	const	{ return NElements; }

	inline	char*	Name(Int_t Z)
		{ return ((XSElement*)((*elements)[Z-1]))->Name(); }

	inline	char*	Mnemonic(Int_t Z)
		{ return ((XSElement*)((*elements)[Z-1]))->Mnemonic(); }

	inline	XSElement	*Elem(Int_t Z)
		{ return ((XSElement*)((*elements)[Z-1])); }

	// Search for element either by name or mnemonic
	UInt_t		Find(const char *str);

	//ClassDef(XSElements,1)
}; // XSElements

#endif