HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · example/presenterchart/chartview.cpp

Better way to enable features to user. Do less, but expose signals to user and allow user to descide what to do.

Michal Klocek - - Load All Authors

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             chartview.cpp
        
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             / example / presenterchart / chartview.cpp
          
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        Michal Klocek
    
Adds preseterchart example

              r246
            
      #include "chartview.h"

        Michal Klocek
    
Rename QLineChartSeries to QLineSeries

              r349
            
      #include <qlineseries.h>

        Michal Klocek
    
Adds preseterchart example

              r246
            
      #include <QTime>

      ChartView::ChartView(QWidget* parent):QChartView(parent),

      m_index(0)

      {

          QObject::connect(&m_timer,SIGNAL(timeout()),this,SLOT(handleTimeout()));

          m_timer.setInterval(3000);

          QTime now = QTime::currentTime();

          qsrand((uint)now.msec());

        Michal Klocek
    
Rename QLineChartSeries to QLineSeries

              r349
            
          QLineSeries* series0 = new QLineSeries();

        Michal Klocek
    
Adds preseterchart example

              r246
            
          QPen blue(Qt::blue);

          blue.setWidth(3);

          series0->setPen(blue);

        Michal Klocek
    
Rename QLineChartSeries to QLineSeries

              r349
            
          QLineSeries* series1 = new QLineSeries();

        Michal Klocek
    
Adds preseterchart example

              r246
            
          QPen red(Qt::red);

          red.setWidth(3);

          series1->setPen(red);

        Michal Klocek
    
Rename QLineChartSeries to QLineSeries

              r349
            
          QLineSeries* series2 = new QLineSeries();

        Michal Klocek
    
Adds preseterchart example

              r246
            
          QPen green(Qt::green);

          green.setWidth(3);

          series2->setPen(green);

          int numPoints = 10;

          for (int x = 0; x <= numPoints; ++x) {

              series0->add(x,  qrand() % 100);

              series1->add(x,  qrand() % 100);

              series2->add(x,  qrand() % 100);

          }

          addSeries(series0);

          m_series<<series0;

          m_series<<series1;

          m_series<<series2;

          m_timer.start();

      }

      ChartView::~ChartView()

      {

        Michal Klocek
    
Fix memory leak in presenter example

              r257
            
          if(m_series.size()==0) return;

          removeSeries(m_series.at(m_index));

          qDeleteAll(m_series);

        Michal Klocek
    
Adds preseterchart example

              r246
            
      }

      void ChartView::handleTimeout()

      {

          if(m_series.size()==0) return;

          removeSeries(m_series.at(m_index));

          m_index++;

          m_index=m_index%m_series.size();

          addSeries(m_series.at(m_index));

      }

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Michal Klocek Adds preseterchart example	r246	#include "chartview.h"
Michal Klocek Rename QLineChartSeries to QLineSeries	r349	#include <qlineseries.h>
Michal Klocek Adds preseterchart example	r246	#include <QTime>

		ChartView::ChartView(QWidget* parent):QChartView(parent),
		m_index(0)
		{
		QObject::connect(&m_timer,SIGNAL(timeout()),this,SLOT(handleTimeout()));
		m_timer.setInterval(3000);

		QTime now = QTime::currentTime();
		qsrand((uint)now.msec());

Michal Klocek Rename QLineChartSeries to QLineSeries	r349	QLineSeries* series0 = new QLineSeries();
Michal Klocek Adds preseterchart example	r246	QPen blue(Qt::blue);
		blue.setWidth(3);
		series0->setPen(blue);
Michal Klocek Rename QLineChartSeries to QLineSeries	r349	QLineSeries* series1 = new QLineSeries();
Michal Klocek Adds preseterchart example	r246	QPen red(Qt::red);
		red.setWidth(3);
		series1->setPen(red);
Michal Klocek Rename QLineChartSeries to QLineSeries	r349	QLineSeries* series2 = new QLineSeries();
Michal Klocek Adds preseterchart example	r246	QPen green(Qt::green);
		green.setWidth(3);
		series2->setPen(green);

		int numPoints = 10;

		for (int x = 0; x <= numPoints; ++x) {
		series0->add(x, qrand() % 100);
		series1->add(x, qrand() % 100);
		series2->add(x, qrand() % 100);
		}

		addSeries(series0);

		m_series<<series0;
		m_series<<series1;
		m_series<<series2;

		m_timer.start();
		}

		ChartView::~ChartView()
		{
Michal Klocek Fix memory leak in presenter example	r257	if(m_series.size()==0) return;
		removeSeries(m_series.at(m_index));
		qDeleteAll(m_series);
Michal Klocek Adds preseterchart example	r246	}

		void ChartView::handleTimeout()
		{
		if(m_series.size()==0) return;

		removeSeries(m_series.at(m_index));
		m_index++;
		m_index=m_index%m_series.size();
		addSeries(m_series.at(m_index));
		}