///////////////////////////////////////////////////////////
// Softwarebauelemente II, Aufgabe O2.1
//
// author:			Stephan Brumme
// last changes:	February 26, 2001

#include "Room.h"
#include <iostream>


CRoom::CRoom(int nNumberOfRoom, int nArea)
{
	m_nArea = nArea;
	m_nNumberOfRoom = nNumberOfRoom;
}


// attention ! this method is NOT part of CRoom
ostream& operator<<(ostream &mystream, const CRoom& room)
{
	return room.OutStream(mystream);
}


// used to perform proper display in derived classes
ostream& CRoom::OutStream(ostream& mystream, bool bDebug) const
{
	if (!bDebug)
	{
		mystream << "Room no. " << m_nNumberOfRoom 
			     << " covers an area of " << m_nArea << " square feet.";
	}
	else
	{
		mystream << "DEBUG info for '"    << ClassnameOf()  << "'" << endl 
				 << "   m_nArea="         << m_nArea
				 <<  "  m_nNumberOfRoom=" << m_nNumberOfRoom << endl;
	}

	return mystream;
}


// compare the room with another one
bool CRoom::operator==(const CRoom &room) const
{
	return ((room.m_nArea         == m_nArea) &&
		    (room.m_nNumberOfRoom == m_nNumberOfRoom));
}


// compare the room with another one
// routes call down to "==" operator
bool CRoom::EqualValue(const CRoom* room) const
{
	// disallow NULL pointer
	if (room == NULL)
		return false;

	return (operator==(*room));
}



// copy one room to another one
// prevents user from copying an object to itself
CRoom& CRoom::operator=(const CRoom &room)
{
	// copy all variables
	m_nArea         = room.m_nArea;
	m_nNumberOfRoom = room.m_nNumberOfRoom;

	return *this;
}


// copy one room to another one
// prevents user from copying an object to itself
// calls "=" operator internally
bool CRoom::Copy(const CRoom* room)
{
	// disallow NULL pointer
	if (room == NULL)
		return false;

	// cannot copy an object to itself
	if (this == room)
		return false;

	// use "=" operator
	operator=(*room);

	return true;
}


// retrieve the private value of m_nNumberOfRoom
int CRoom::GetNumberOfRoom() const
{
	return m_nNumberOfRoom;
}


// change private m_nNumberOfRoom
void CRoom::SetNumberOfRoom(const int nNumberOfRoom)
{
	m_nNumberOfRoom = nNumberOfRoom;
}


// retrieve the private value of m_nArea
int CRoom::GetArea() const
{
	return m_nArea;
}