1 #include <qwt_dial.h>
2 #include <qwt_dial_needle.h>
3 
4 class AttitudeIndicatorNeedle: public QwtDialNeedle
5 {
6 public:
7     AttitudeIndicatorNeedle( const QColor & );
8 
9 protected:
10     virtual void drawNeedle( QPainter *,
11         double length, QPalette::ColorGroup ) const;
12 };
13 
14 class AttitudeIndicator: public QwtDial
15 {
16     Q_OBJECT
17 
18 public:
19     AttitudeIndicator( QWidget *parent = NULL );
20 
angle()21     double angle() const { return value(); }
gradient()22     double gradient() const { return d_gradient; }
23 
24 public Q_SLOTS:
25     void setGradient( double );
setAngle(double angle)26     void setAngle( double angle ) { setValue( angle ); }
27 
28 protected:
29     virtual void keyPressEvent( QKeyEvent * );
30 
31     virtual void drawScale( QPainter *,
32         const QPointF &center, double radius ) const;
33 
34     virtual void drawScaleContents( QPainter *painter,
35         const QPointF &center, double radius ) const;
36 
37 private:
38     double d_gradient;
39 };
40