彻底改版2.0

third/qwtdemo/examples/cpuplot/cpupiemarker.h

@@ -0,0 +1,17 @@
+//-----------------------------------------------------------------
+// This class shows how to extend QwtPlotItems. It displays a
+// pie chart of user/total/idle cpu usage in percent.
+//-----------------------------------------------------------------
+
+#include <qwt_plot_item.h>
+
+class CpuPieMarker: public QwtPlotItem
+{
+public:
+    CpuPieMarker();
+
+    virtual int rtti() const;
+
+    virtual void draw( QPainter *,
+        const QwtScaleMap &, const QwtScaleMap &, const QRectF & ) const;
+};