QScrollArea

[franco.amato]

Hi to all,
I attached a QScrollArea to my class inherited from QWidget so:

/* vertical layout */
m_pVbox = new QVBoxLayout( this );
 
/* scroll area */
sa = new QScrollArea( this );
sa->setWidgetResizable( true );
 
/* waveform */
m_pWaveU = new WaveDisplay( this );
 
sa->setWidget( m_pWaveU );
 
 m_pVbox->addWidget( sa );
..add other widgets..
 
setLayout(m_pVbox);

/* vertical layout */
m_pVbox = new QVBoxLayout( this );

/* scroll area */
sa = new QScrollArea( this );
sa->setWidgetResizable( true );

/* waveform */
m_pWaveU = new WaveDisplay( this );

sa->setWidget( m_pWaveU );

 m_pVbox->addWidget( sa );
..add other widgets..

setLayout(m_pVbox);

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The scroll area should manage the case where the waveform go out of screen width creating a scrollbar.
I would know if it's possible to emit a signal when I move the scroll bar.

Best Regards