mkxp/src/disposable.h

98 lines
1.8 KiB
C++

/*
** 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 "intrulist.h"
#include "exception.h"
#include "sharedstate.h"
#include "graphics.h"
#include <assert.h>
#include <sigc++/signal.h>
#include <sigc++/connection.h>
class Disposable
{
public:
Disposable()
: disposed(false),
link(this)
{
shState->graphics().addDisposable(this);
}
virtual ~Disposable()
{
shState->graphics().remDisposable(this);
}
void dispose()
{
if (disposed)
return;
releaseResources();
disposed = true;
wasDisposed();
}
bool isDisposed() const
{
return disposed;
}
sigc::signal<void> wasDisposed;
protected:
void guardDisposed() const
{
if (isDisposed())
throw Exception(Exception::RGSSError,
"disposed %s", klassName());
}
private:
virtual void releaseResources() = 0;
virtual const char *klassName() const = 0;
friend class Graphics;
bool disposed;
IntruListLink<Disposable> link;
};
template<class C>
inline bool
nullOrDisposed(const C *d)
{
if (!d)
return true;
if (d->isDisposed())
return true;
return false;
}
#endif // DISPOSABLE_H