Message.cpp

#include "Message.h"

Message::Message(const Message &m):
	contents(m.contents), folders(m.folders)
{
	add_to_folders(m);
}

Message& Message::operator= (const Message& rhs)
{
	remove_from_folders();
	contents = rhs.contents;
	folders = rhs.folders;
	add_to_folders(rhs);
	return *this;
}

Message::~Message()
{
	remove_from_folders();
}

void Message::save(Folder &f)
{
	folders.insert (&f);
	f.addMsg(this);
}

void Message::remove(Folder &f)
{
	folders.erase(&f);
	f.remMsg(this);
}

void Message::add_to_folders(const Message &m)
{
	for (auto f: m.folders)
	{
		f->addMsg(this);
	}
}

void Message::remove_from_folders()
{
	for (auto f: folders)
	{
		f->remMsg(this);
	}
	folders.clear();
}

void swap(Message &lhs, Message &rhs)
{
	using std::swap;
	for (auto f: lhs.folders)
	{
		f->remMsg(&lhs);
	}
	for (auto f: rhs.folders)
	{
		f->remMsg(&rhs);
	}
	swap(lhs.folders, rhs.folders);
	swap(lhs.contents, rhs.contents);
	for (auto f: lhs.folders)
	{
		f->addMsg(&lhs);
	}
	for (auto f: rhs.folders)
	{
		f->addMsg(&rhs);
	}
}