CPUUsageChart.h

#ifndef CPUUSAGECHART_H
#define CPUUSAGECHART_H
#include "Core/CPUStateFetcher.h"
#include <QWidget>
class QChart;
class QLineSeries;
class QValueAxis;
 
namespace Ui {
class CPUUsageChart;
}
 
class CPUUsageChart : public QWidget {
    Q_OBJECT
 
public:
    explicit CPUUsageChart(QWidget* parent = nullptr);
    ~CPUUsageChart();
 
public slots:
    void flush_from_cpudriver(const CPUStateFetcher::CPUState& state);
 
private:
    static constexpr const unsigned short MAX_POINT { 30 };
    void setup_chart_ui();
    void flush_labels(const CPUStateFetcher::CPUState& state, const double cpu_usage_percentage);
    Ui::CPUUsageChart* ui;
    QChart* chart { nullptr };
    QLineSeries* series { nullptr };
    QValueAxis* axisX { nullptr };
    QValueAxis* axisY { nullptr };
    QList<int> xValues;
    QList<double> yValues;
    int currentTime = 0; 
    struct {
        double last_tol { 0.0 }; 
        double last_idle { 0.0 }; 
    } cached_data; 
};
 
#endif // CPUUSAGECHART_H