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/***************************************************************************
* Copyright (C) 2007 by Ken Werner *
* [email protected] *
* *
* 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., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef TRIGGEREDSOURCE_H
#define TRIGGEREDSOURCE_H
#include "source.h"
#include <tqevent.h>
/**
* TriggeredSource provides fetchValue and
* can be triggered asynchronously by ThreadedTrigger
* @author Ken Werner
*/
class TriggeredSource : public Source{
Q_OBJECT
//macro which activates signals and slots (moc)
public:
/**
* Creates a new TriggeredSource
*/
TriggeredSource(TQWidget* inParent);
virtual ~TriggeredSource();
public slots:
/**
* Returns the formatted value of this source
*/
virtual TQString getValue() const;
/**
* Fetches and returns the value of this source
* This method might be called from a thread so don't call it directly
*/
virtual TQString fetchValue() = 0;
signals:
/**
* This signal is emitted whenever the value of this source (mValue) is updated
*/
void valueUpdated(const TQString& inValue);
protected:
/**
* consumes the UpdateEvent
*/
virtual void customEvent(TQCustomEvent* event);
/**
* the buffered value of this source
*/
TQString mValue;
};
#endif //TRIGGEREDSOURCE_H
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