/*
Copyright (C) 2000  Dancer A.L Vesperman

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 2
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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#ifndef __IFF_H_
#define __IFF_H_

#include <vector>
#include <string>
#include "common_types.h"
#include "U7file.h"


class IFF : public U7file
{
public:
	struct  IFFhdr
	{
		char	form_magic[4];
		uint32	size;
		char	data_type[4];
		IFFhdr() {}
		IFFhdr(const IFFhdr &i) : size(i.size)
		{
			std::memcpy(form_magic,i.form_magic,sizeof(form_magic));
			std::memcpy(data_type,i.data_type,sizeof(data_type));
		}
		IFFhdr &operator=(const IFFhdr &i)
		{
			size=i.size;
			std::memcpy(form_magic,i.form_magic,sizeof(form_magic));
			std::memcpy(data_type,i.data_type,sizeof(data_type));
			return *this;
		}
	};
	struct  IFFobject
	{
		char	type[4];
		uint32	size;
		char	even;
	};
	struct  u7IFFobj
	{
		char	name[8];
		// char    data[]; // Variable
	};
	struct Reference
		{
		uint32	offset;
		uint32	size;
		Reference() : offset(0),size(0) {};
	};

protected:
	IFFhdr	header;
	std::vector<Reference> object_list;

public:
	IFF(const std::string &fname);
	IFF(const IFF &i) : header(i.header),object_list(i.object_list) {}
	IFF operator=(const IFF &i)
	{
		header=i.header;
		object_list=i.object_list;
		return *this;
	}

	// char *read_object(int objnum,uint32 &length);
	virtual uint32		number_of_objects(void) { return object_list.size(); };
	virtual char *		retrieve(uint32 objnum,std::size_t &len); // To a memory block
	virtual const char*	get_archive_type() { return "IFF"; };

private:
	IFF(); // No default constructor
	void IndexIFFFile(void);
};


#endif