i_qslider.h

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#ifndef i_qslider_h
#define i_qslider_h
 
/*+
________________________________________________________________________
 
 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        A.H. Lammertink
 Date:          01/02/2001
 RCS:           $Id$
________________________________________________________________________
 
-*/
 
#include "uislider.h"
 
#include <QSlider>
 
 
QT_BEGIN_NAMESPACE
 
class QString;
 
class i_SliderMessenger : public QObject
{
    Q_OBJECT
    friend class        uiSliderBody;
 
protected:
 
i_SliderMessenger( QSlider* sndr, uiSlider* receiver )
    : sender_(sndr)
    , receiver_(receiver)
{
    connect( sndr, SIGNAL(sliderMoved(int)), this, SLOT(sliderMoved(int)) );
    connect( sndr, SIGNAL(sliderPressed()), this, SLOT(sliderPressed()) );
    connect( sndr, SIGNAL(sliderReleased()), this, SLOT(sliderReleased()) );
    connect( sndr, SIGNAL(valueChanged(int)), this, SLOT(valueChanged(int)) );
}
 
 
private:
 
    uiSlider*   receiver_;
    QSlider*    sender_;
 
#define mTrigger( notifier ) \
    const int refnr = receiver_->slider()->beginCmdRecEvent( #notifier ); \
    receiver_->notifier.trigger(*receiver_); \
    receiver_->slider()->endCmdRecEvent( refnr, #notifier );
 
private slots:
 
void sliderMoved(int)   { mTrigger(sliderMoved); }
void sliderPressed()    { mTrigger(sliderPressed); }
void sliderReleased()   { mTrigger(sliderReleased); }
void valueChanged(int)  { mTrigger(valueChanged); }
 
#undef mTrigger
 
};
 
QT_END_NAMESPACE
 
#endif