connect( aPanel, SIGNAL( modeActivated( int ) ), SLOT( onModeActivated( int ) ) );
connect( aPanel, SIGNAL( refImageActivated( const QString& ) ),
SLOT( onRefImageActivated( const QString& ) ) );
connect( aPanel, SIGNAL( modeActivated( int ) ), SLOT( onModeActivated( int ) ) );
connect( aPanel, SIGNAL( refImageActivated( const QString& ) ),
SLOT( onRefImageActivated( const QString& ) ) );