exam_timer_teacher/appevent.h

#ifndef APPEVENT_H
#define APPEVENT_H

#include <QElapsedTimer>
#include <QObject>
#include "qdebug.h"
class OpTime
{
public:
    OpTime(const QString &_name)
        : name(_name)
    {
        elapsedTimer.restart();
    }
    ~OpTime() { qDebug() << name << elapsedTimer.elapsed(); }

private:
    QString name;
    QElapsedTimer elapsedTimer;
};

class AppEvent : public QObject
{
    Q_OBJECT

    explicit AppEvent(QObject *parent = nullptr);
    ~AppEvent();

public:
    static AppEvent *instance(); // 静态方法返回单例实例

    static qint64 time();
    // 考试配置
    void setExam(const QString &examRoom, const QString &examNumber);
    QString examRoom() const;
    QString examNumber() const;
    // 配置
    bool setConfigValue(const QString &key, const QVariant &value);
    QVariant configValue(const QString &key);

    bool configLoadJson(const QJsonObject &object);
    bool configLoad();
    bool configSave();
    QJsonObject config() const;

    // 更新数据
    void loginUser(qint64 id);
    void loginOutUser(qint64 id);
    //更新考试信息
    void examsTestUpdate();

    void webSocketUpdata();

    void examQuestionChenge() { emit examQuestionChengeSignal(); }
signals:
    void loginUserSignal(qint64 id);
    void loginOutUserSignal(qint64 id);
    void examsTestUpdateSignal();
    void webSocketUpdataSignal();

    void examQuestionChengeSignal();

private:
    class AppEventPrivate *d;
};

#endif // APPEVENT_H