timer.h

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#pragma once
 
/*+
________________________________________________________________________
 
 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        A.H. Lammertink
 Date:          16/10/2000
 RCS:           $Id$
________________________________________________________________________
 
-*/
 
#include "basicmod.h"
#include "namedobj.h"
 
mFDQtclass(QTimer)
mFDQtclass(QTimerComm)
 
 
mExpClass(Basic) Timer : public NamedCallBacker
{
public :
                        Timer(const char* nm="Timer");
    virtual             ~Timer();
 
    bool                isActive() const;
    bool                isSingleShot() const;
 
    void                start(int msec,bool singleshot=false);
    void                stop();
 
    Notifier<Timer>     tick;
 
    void                notifyHandler();
 
    enum ScriptPolicy   { DefaultPolicy, DontWait, UserWait, KeepWaiting };
    void                setScriptPolicy(ScriptPolicy);
 
protected:
    mQtclass(QTimer*)           timer_;
    mQtclass(QTimerComm*)               comm_;
    ScriptPolicy        scriptpolicy_;
 
public:
                                // Not for casual use
 
    ScriptPolicy                scriptPolicy() const;
    static bool                 setUserWaitFlag(bool);  // returns old state
 
    static Notifier<Timer>*     timerStarts();
    static Notifier<Timer>*     timerStopped();
    static Notifier<Timer>*     timerShoots();
    static Notifier<Timer>*     timerShot();
 
};