- DragValue(const QString &label, double defaultValue, int decimals, double min = 0, double max = 100, int id = -1, const QString suffix = QString(), bool showSlider = true, QWidget* parent = 0);
+ explicit DragValue(const QString &label, double defaultValue, int decimals, double min = 0, double max = 100, int id = -1, const QString &suffix = QString(), bool showSlider = true, QWidget* parent = 0);