Hi friends i am trying to print the system time as the Bottom X Axis of a QwtPlot Widget. But i am having problem doing it i get so many errors when i compile is there any easier way to do it.I tried the DataPlot example in this program but i have so many errors. Here is the code

Qt Code: 
  1. #include "qwt_plot.h"
  2. #include "qwt_scale_widget.h"
  3. #include <QTimer>
  4. #include <stdlib.h>
  5. #include <qwt_plot_curve.h>
  6. #include <qwt_plot_grid.h>
  7. #include <QTime>
  8.  
  9. PlottingGraph::PlottingGraph(QWidget *parent)
  10. 	: QDialog(parent)
  11.     , m_curve(0)
  12.     , m_time(0)
  13.  
  14. {
  15. 	setupUi(this);
  16.     connect(drawButton, SIGNAL(clicked()), this, SLOT(draw()));
  17.  
  18. 	QTimer *timer = new QTimer(this);
  19.     connect(timer, SIGNAL(timeout()), this, SLOT(draw()));
  20.     timer->start(300);
  21.  
  22. 	for (int i = 0; i < 100; i++)
  23. 	{
  24. 		m_x[i] = i;
  25. 		m_y[i] = 0.0;
  26. 	}
  27.  
  28. 	myPlot->setTitle("Temperature Channel");
  29. 	myPlot->setAxisTitle(QwtPlot::xBottom, "System Uptime [h:m:s]");
  30. 	myPlot->setAxisScaleDraw(QwtPlot::xBottom, 
  31.            new TimeScaleDraw(cpuStat.upTime()));
  32.     myPlot->setAxisScale(QwtPlot::xBottom, 0, HISTORY);
  33. 	myPlot->setAxisTitle(QwtPlot::yLeft, "Values");
  34. 	myPlot->setAxisScale(QwtPlot::yLeft, -10000, 10000);
  35.     myPlot->setAutoReplot(true);
  36. }
  37. void PlottingGraph::on_drawButton_clicked()
  38. {
  39. }
  40. void PlottingGraph::draw()
  41. {
  42. 	m_time++;
  43. 	memmove(m_y, &m_y[1], 99 * sizeof(double));
  44. 	m_y[99] = 1000 * sin((double)m_time / 360 * 3.1415 * 100) + rand() % 4000 - 2000;
  45. 	for (int i = 0; i < 100; i++)
  46.  
  47. 		m_x[i]++;
  48.  
  49. 	if (!m_curve)
  50. 	{
  51. 		        m_curve = new QwtPlotCurve();
  52.                 m_curve->setPen(QPen(Qt::red));
  53.                 m_curve->setData(m_x, m_y, 100);
  54. 				QwtPlotGrid *gridy = new QwtPlotGrid();
  55. 	            gridy->attach(myPlot);
  56. 		        m_curve->attach(myPlot);
  57.     }
  58.     m_curve->setData(m_x, m_y, 100);
  59.     myPlot->setAxisScale(QwtPlot::xBottom, timeData[HISTORY - 1], timeData[0]);                                     //m_time, m_time + 100); // auto replots 
  60.     QTime time = QTime::currentTime();
  61. 	myPlot->setAxisScale(QwtPlot::xBottom, time.("h:m:s"));
  62. }
  63.  
  64.  
  65. void PlottingGraph::timerEvent(QTimerEvent *)
  66. {
  67.     for ( int i = dataCount; i > 0; i-- )
  68.     {
  69.         for ( int c = 0; c < NCpuData; c++ )
  70.         {
  71.             if ( i < HISTORY )
  72.                 data[c].data[i] = data[c].data[i-1];
  73.         }
  74.     }
  75.  
  76.     cpuStat.statistic(data[User].data[0], data[System].data[0]);
  77.  
  78.     data[Total].data[0] = data[User].data[0] + 
  79.         data[System].data[0];
  80.     data[Idle].data[0] = 100.0 - data[Total].data[0];
  81.  
  82.     if ( dataCount < HISTORY )
  83.         dataCount++;
  84.  
  85.     for ( int j = 0; j < HISTORY; j++ )
  86.         timeData[j]++;
  87.  
  88.     setAxisScale(QwtPlot::xBottom, 
  89.         timeData[HISTORY - 1], timeData[0]);
  90.  
  91.     for ( int c = 0; c < NCpuData; c++ )
  92.     {
  93.         data[c].curve->setRawData(
  94.             timeData, data[c].data, dataCount);
  95.     }
  96.  
  97.     replot();
  98. }
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Thank You