彻底改版2.0

third/qwtdemo/examples/realtime/incrementalplot.h

@@ -0,0 +1,28 @@
+#ifndef _INCREMENTALPLOT_H_
+#define _INCREMENTALPLOT_H_ 1
+
+#include <qwt_plot.h>
+
+class QwtPlotCurve;
+class QwtPlotDirectPainter;
+
+class IncrementalPlot : public QwtPlot
+{
+    Q_OBJECT
+
+public:
+    IncrementalPlot( QWidget *parent = NULL );
+    virtual ~IncrementalPlot();
+
+    void appendPoint( const QPointF & );
+    void clearPoints();
+
+public Q_SLOTS:
+    void showSymbols( bool );
+
+private:
+    QwtPlotCurve *d_curve;
+    QwtPlotDirectPainter *d_directPainter;
+};
+
+#endif // _INCREMENTALPLOT_H_