QT表格 QTableWidget 移動行功能函數

表格QTableWidget 移動行功能函數

移動表格中的行，該功能函數實現指定行移動到目的行的功能。

void moveRow( QTableWidget *pTable, int nFrom, int nTo )
{
    if( pTable == NULL ) {
        return;
    }
    if( nFrom == nTo ) {
        return;
    }
    if( nFrom < 0 || nTo < 0 ) {
        return;
    }
    int nRowCount = pTable->rowCount();
    if( nFrom >= nRowCount  || nTo >= nRowCount ) return;

    int nColCur = 0;
    nColCur = pTable->currentColumn();
    QTableWidgetItem *itCur = pTable->currentItem();
    if( nullptr != itCur ){
        nColCur = itCur->column();
    }
    int nFromRow = nFrom;
    int nInsertRow = nTo;
    if( nTo < nFrom ){  // Up
        nFromRow = nFrom + 1;
        this->insertRow(pTable, nTo);
    }else { // Down
        nInsertRow = nTo + 1;
        this->insertRow(pTable, nInsertRow);
    }
    this->copyRow( pTable, nFromRow, nInsertRow );
    this->removeRow( pTable, nFromRow );   //刪除舊行信息

    // 選擇之前移動的行
    pTable->selectRow( nInsertRow );
    pTable->setCurrentCell(nTo, nColCur);
}