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标题:
Qt之QHeaderView排序
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作者:
Qter
时间:
2017-2-10 18:20
标题:
Qt之QHeaderView排序
本帖最后由 Qter 于 2017-2-10 18:33 编辑
Qt之QHeaderView排序
QTableView *pTableView = new QTableView(this);
TableModel *pModel = new TableModel(this);
QSortFilterProxyModel *pProxyModel = new QSortFilterProxyModel(this);
// 设置数据源模型
pProxyModel->setSourceModel(pModel);
pTableView->setModel(pProxyModel);
// 设置可排序
pTableView->setSortingEnabled(true);
// 设置按照文件名升序排列
pTableView->sortByColumn(FILE_NAME_COLUMN, Qt::AscendingOrder);
// 构造数据,更新界面
QList<FileRecord> recordList;
// 获取随机值
QTime time = QTime::currentTime();
qsrand(time.msec() + time.second()*1000);
for (int i = 0; i < 5; ++i)
{
int nIndex = qrand()%20 + 1;
int nHour = qrand()%24;
int nMinute = qrand()%60;
int nSecond = qrand()%60;
int nBytes = qrand()%100000;
QDateTime dateTime(QDate(2016, 5, 1), QTime(nHour, nMinute, nSecond));
FileRecord record;
record.strFileName = QString("Name %1.cpp").arg(nIndex);
record.dateTime = dateTime;
record.nSize = nBytes;
recordList.append(record);
}
pModel->updateData(recordList);
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Qt之QHeaderView自定义排序(QSortFilterProxyModel)
SortFilterProxyModel::SortFilterProxyModel(QWidget *parent)
: QSortFilterProxyModel(parent)
{
}
SortFilterProxyModel::~SortFilterProxyModel()
{
}
bool SortFilterProxyModel::lessThan(const QModelIndex &source_left, const QModelIndex &source_right) const
{
if (!source_left.isValid() || !source_right.isValid())
return false;
if ((source_left.column() == FILE_NAME_COLUMN) && (source_right.column() == FILE_NAME_COLUMN))
{
QVariant leftData = sourceModel()->data(source_left);
QVariant rightData = sourceModel()->data(source_right);
if (leftData.canConvert<QString>() && rightData.canConvert<QString>())
{
QString strLeft = leftData.toString();
QString strRight = rightData.toString();
// 去掉后缀.cpp
if (strLeft.contains("."))
{
int nIndex = strLeft.lastIndexOf(".");
strLeft = strLeft.left(nIndex);
}
if (strRight.contains("."))
{
int nIndex = strRight.lastIndexOf(".");
strRight = strRight.left(nIndex);
}
// 比较大小,如果字符串相同,则比较后面的整形数据
QStringList strLeftList = strLeft.split(" ");
QStringList strRightList = strRight.split(" ");
if ((strLeftList.count() >= 2) && (strRightList.count() >= 2))
{
int nResult = QString::compare(strLeftList.at(0), strRightList.at(0), Qt::CaseInsensitive);
if (nResult == 0)
{
return strLeftList.at(1).toInt() < strRightList.at(1).toInt();
}
else
{
return nResult;
}
}
}
}
return QSortFilterProxyModel::lessThan(source_left, source_right);
}
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Qt之QHeaderView自定义排序(终极版)
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