98 lines
1.8 KiB
C++
98 lines
1.8 KiB
C++
/*
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** disposable.h
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**
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** This file is part of mkxp.
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**
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** Copyright (C) 2013 Jonas Kulla <Nyocurio@gmail.com>
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**
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** mkxp is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 2 of the License, or
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** (at your option) any later version.
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**
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** mkxp is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef DISPOSABLE_H
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#define DISPOSABLE_H
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#include "intrulist.h"
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#include "exception.h"
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#include "sharedstate.h"
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#include "graphics.h"
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#include <assert.h>
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#include <sigc++/signal.h>
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#include <sigc++/connection.h>
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class Disposable
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{
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public:
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Disposable()
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: disposed(false),
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link(this)
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{
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shState->graphics().addDisposable(this);
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}
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virtual ~Disposable()
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{
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shState->graphics().remDisposable(this);
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}
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void dispose()
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{
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if (disposed)
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return;
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releaseResources();
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disposed = true;
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wasDisposed();
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}
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bool isDisposed() const
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{
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return disposed;
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}
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sigc::signal<void> wasDisposed;
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protected:
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void guardDisposed() const
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{
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if (isDisposed())
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throw Exception(Exception::RGSSError,
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"disposed %s", klassName());
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}
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private:
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virtual void releaseResources() = 0;
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virtual const char *klassName() const = 0;
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friend class Graphics;
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bool disposed;
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IntruListLink<Disposable> link;
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};
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template<class C>
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inline bool
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nullOrDisposed(const C *d)
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{
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if (!d)
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return true;
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if (d->isDisposed())
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return true;
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return false;
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}
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#endif // DISPOSABLE_H
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