69 lines
1.4 KiB
C++
69 lines
1.4 KiB
C++
#include "samplemodel.h"
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#include <QDebug>
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#include <QRandomGenerator>
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SampleModel::SampleModel(QObject *parent) : QAbstractListModel(parent)
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{
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}
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int SampleModel::rowCount(const QModelIndex &parent) const
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{
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Q_UNUSED(parent)
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return _data.size();
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}
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QVariant SampleModel::data(const QModelIndex &index, int role) const
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{
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if (!index.isValid())
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return QVariant();
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if (index.row() < 0 || index.row() > _data.count() - 1)
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return QVariant();
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auto row = _data.at(index.row());
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switch (role) {
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case IdRole:
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return index.row();
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case NameRole:
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return row.first;
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case GradeRole:
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return row.second;
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}
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return QVariant();
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}
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QHash<int, QByteArray> SampleModel::roleNames() const
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{
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return {
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{IdRole, "id"},
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{NameRole, "name"},
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{GradeRole, "grade"}
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};
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}
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void SampleModel::fillSampleData(int size)
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{
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QString abs = "qwertyuiopasdfghjklzxcvbnm";
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QRandomGenerator r;
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for (auto i = 0; i < size; i++) {
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Row row;
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auto nameLen = r.bounded(3, 8);
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QString name;
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for (int c = 0; c < nameLen; ++c)
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name.append(abs.at(r.bounded(0, abs.size() - 1)));
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row.first = name;
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row.second = r.bounded(0, 20);
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_data.append(row);
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}
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qDebug() << _data.size() << "item(s) added as sample data";
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beginInsertRows(QModelIndex(), 0, _data.size() - 1);
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endInsertRows();
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}
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