layout->addWidget( delButton, 1, 0 );
layout->addWidget( clearButton, 2, 0 );
layout->addItem( new QSpacerItem( 20, 20, QSizePolicy::Expanding ), 4, 0 );
layout->addWidget( delButton, 1, 0 );
layout->addWidget( clearButton, 2, 0 );
layout->addItem( new QSpacerItem( 20, 20, QSizePolicy::Expanding ), 4, 0 );