-BufferViewDock::BufferViewDock(QAbstractItemModel *model, QString viewname, BufferViewFilter::Modes mode, QStringList nets, QWidget *parent) : QDockWidget(parent) {
+BufferViewDock::BufferViewDock(QAbstractItemModel *model, const QString &viewname, const BufferViewFilter::Modes &mode, const QStringList &nets, QWidget *parent) : QDockWidget(parent) {