新增qwt源码版本

qwtdemo/examples/controls/dialbox.h

@@ -0,0 +1,25 @@
+#ifndef _DIAL_BOX_H_
+#define _DIAL_BOX_H_
+
+#include <qwidget.h>
+
+class QLabel;
+class QwtDial;
+
+class DialBox: public QWidget
+{
+    Q_OBJECT
+public:
+    DialBox( QWidget *parent, int type );
+
+private Q_SLOTS:
+    void setNum( double v );
+
+private:
+    QwtDial *createDial( int type ) const;
+
+    QwtDial *d_dial;
+    QLabel *d_label;
+};
+
+#endif