qt_demoe/qwtdemo/examples/oscilloscope/knob.h

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2019-11-07 02:55:57 +00:00
#ifndef _KNOB_H_
#define _KNOB_H_
#include <qwidget.h>
class QwtKnob;
class QLabel;
class Knob: public QWidget
{
Q_OBJECT
Q_PROPERTY( QColor theme READ theme WRITE setTheme )
public:
Knob( const QString &title,
double min, double max, QWidget *parent = NULL );
virtual QSize sizeHint() const;
void setValue( double value );
double value() const;
void setTheme( const QColor & );
QColor theme() const;
Q_SIGNALS:
double valueChanged( double );
protected:
virtual void resizeEvent( QResizeEvent * );
private:
QwtKnob *d_knob;
QLabel *d_label;
};
#endif