exam_timer_teacher/widgets/examsmodel.h

#ifndef EXAMSMODEL_H
#define EXAMSMODEL_H

#include <QAbstractTableModel >
#include <QObject>

class ExamsTableModel : public QAbstractTableModel
{
    Q_OBJECT
public:
    explicit ExamsTableModel(QObject *parent = nullptr);

    struct Exams
    {
        qint64 id;
        QString name;
        QString fileDir;
        bool select;
    };
    // 加载 JSON 数据
    void loadJsonData(const QJsonArray &jsonArray);

    Exams getCurrentExam(const QModelIndex &index) const
    {
        if (index.isValid() && index.row() < examsList.size()) {
            return examsList.at(index.row());
        }
        return Exams(); // 如果索引无效或者超出范围，返回一个空的 Exams 结构
    }

protected:
    // 返回行数
    int rowCount(const QModelIndex &parent = QModelIndex()) const override;

    // 返回列数
    int columnCount(const QModelIndex &parent = QModelIndex()) const override;

    // 返回数据
    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;

    // 设置表头
    QVariant headerData(int section,
                        Qt::Orientation orientation,
                        int role = Qt::DisplayRole) const override;

private:
    QList<Exams> examsList;
};

#endif // EXAMSMODEL_H