#ifndef CENTRALWIDGET_H
#define CENTRALWIDGET_H

#include <QWidget>
#include <QMenu>

#include "qcustomplot.h"
#include "protocol.h"
#include "global.h"
#include "eventhandler.h"
#include "filemanager.h"
#include "pointcalculate.h"

class CentralWidget:public QWidget
{
    Q_OBJECT
public:
    enum AnalysisMode{
        Null,
        NumericalLabel,
        StartPoint,
        StopPoint,
        PeakSynthesisAnalysis,
        GlassTransition
    };
    CentralWidget(QWidget *parent = nullptr);
    ~CentralWidget();

    void setAnalysisMode(const AnalysisMode);
    void clearAllData();

    EventHandler* getEvnetHandler(){return _eventHandler;}
signals:
    void sigContextMenuShow(const QPoint);
    void sigSendLineXCoord(const int,const double);
    void sigRightDockWidgetHide();
public slots:
    // experiment
    void slotAxisModify(const float temp);
    void slotModeModify(const Global::Mode);
    void slotRecvCommonData(const CommonData&);
    void slotRecvAnalysisFileName(const QString&);
    void slotSelectionChanged();

    //analysis setting
    void slotAnalysisSettingApply();
    void slotAnalysisSettingConfirm();
    void slotAnalysisSettingUndo();
    void slotAnalysisSettingCancel();

    void slotAnalysisSettingLineXPoint(const int index,const double);
protected:
    void timerEvent(QTimerEvent* event);
    void contextMenuEvent(QContextMenuEvent *event);
private:
    void glassTransitionHandle();

    void glassTransitionHandle2();
    void quadraticFit(const QVector<QPointF>& points, double& a, double& b, double& c);
    double derivativeAt(const double a, const double b, const double x);
    PointCalculate::Line calculateLinearRegression(const QVector<double>& x, const QVector<double>& y);

    void setEventHandlerEnable(const bool);
    QPointF getTheCoordinatesOfTheTextBox(const QPointF point);
    void drawText(const QPointF,const QString);
    void fillGraph(const double x1,const double x2);

    enum ClearDataMode{
        All,
        Undo
    };
    void clearData(const ClearDataMode);
private:
    AnalysisMode _analysisMode;
    QCustomPlot *_customPlot;
    QCPCurve *_currentCurve;
//    QVector<QCPCurve *> _curveVtr;
//    QCPGraph* _currentGraph;
//    QVector<QCPGraph*> _graphVtr;
    EventHandler* _eventHandler;
    QCPItemStraightLine *_line1,*_line2;
//    QVector<Global::ExperimentData> _dataVtr;
    QVector<QCPItemStraightLine*> _lineVtr;
};

#endif // CENTRALWIDGET_H