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/*
* copyright (c) 2005 Boudewijn Rempt
*
* this program 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.
*
* this program 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 this program; if not, write to the free software
* foundation, inc., 675 mass ave, cambridge, ma 02139, usa.
*/
#ifndef KIS_THREAD_
#define KIS_THREAD_
#include <qthread.h>
#include <ksharedptr.h>
/**
* A KisThread is a QThread that can be set in the canceled state.
* Lengthy operations initiated in run() should regularly read the
* canceled state and stop when it's set to true
*/
class KisThread : public QThread {
public:
/**
* Create a new KisThread with the canceled state set to false
*/
KisThread() : QThread(), m_canceled(false) {};
/**
* Request the thread to cancel at the first opportunity. Note
* that the owner of the thread is responsible for restoring the
* previous state of paint devices etc, the thread itself just stops
* as soon as possible.
*/
virtual void cancel() { m_canceled = true; }
virtual bool isCanceled() { return m_canceled; }
void runDirectly() { run(); }
protected:
bool m_canceled;
};
#endif
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