mkxp-freebird/src/disposable.h

/*
** disposable.h
**
** This file is part of mkxp.
**
** Copyright (C) 2013 Jonas Kulla <Nyocurio@gmail.com>
**
** mkxp 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.
**
** mkxp 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 mkxp.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef DISPOSABLE_H
#define DISPOSABLE_H

#include "exception.h"

#include <sigc++/signal.h>

class Disposable
{
public:
	Disposable()
		: disposed(false)
	{}

	virtual ~Disposable() {}

	void dispose()
	{
		if (disposed)
			return;

		releaseResources();
		disposed = true;
		wasDisposed();
	}

	bool isDisposed() const { return disposed; }

	sigc::signal<void> wasDisposed;

protected:
	virtual void releaseResources() = 0;

private:
	bool disposed;
};

/* Every cpp needs to define DISP_CLASS_NAME for itself (lowercase) */
#define GUARD_DISPOSED \
{ if (isDisposed()) throw Exception(Exception::RGSSError, "disposed %s", DISP_CLASS_NAME); }

#endif // DISPOSABLE_H