catch signal stepDown from doubleSpinBox

[pospiech]

in what way did subclassing not work?

class QScienceLineEdit : public QDoubleSpinBox
{
	Q_OBJECT
public:
	QScienceLineEdit(QWidget* parent = 0, Qt::WFlags flags = 0);
	virtual ~QScienceLineEdit();
...

class QScienceLineEdit : public QDoubleSpinBox
{
	Q_OBJECT
public:
	QScienceLineEdit(QWidget* parent = 0, Qt::WFlags flags = 0);
	virtual ~QScienceLineEdit();
...

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fails at line

Q_DECLARE_PRIVATE(QDoubleSpinBox)

Q_DECLARE_PRIVATE(QDoubleSpinBox)

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in qspinbox.h