rem: IdentityCombo * ic = new IdentityCombo( parent ); ic->setCurrentIdentity( mParameter ); return ic;
add: QComboBox *cb = new QComboBox( TRUE, parent ); cb->setInsertionPolicy( QComboBox::AtBottom ); setParamWidgetValue( cb ); return cb;
context: QWidget * KMFilterActionIdentity::createParamWidget( QWidget * parent ) const{  IdentityCombo * ic = new IdentityCombo( parent );  ic->setCurrentIdentity( mParameter );  return ic;}