Our second SysInfoWidget is a MemoryWidget class. This widget will display a history of the data so that we can see how the memory consumption evolves over time. To display this data, we will use a QLineSeries class from the Qt Chart module. Create the MemoryWidget class and follow the same pattern we used for CpuWidget:
#include <QtCharts/QLineSeries>
#include "SysInfoWidget.h"
class MemoryWidget : public SysInfoWidget
{
Q_OBJECT
public:
explicit MemoryWidget(QWidget *parent = 0);
protected slots:
void updateSeries() override;
private:
QtCharts::QLineSeries* mSeries;
qint64 mPointPositionX;
};
Instead of a being a QPieSeries*, mSeries is a type of QLineSeries* which will be linked to the chart object in a very similar ...
