QTableWidget to multiple files - c++

Question

I’ve got QTableWidget with data like this:
table.png
The table can contains only names from the QList:
QList<QString> shapes { "Triangle", "Circle", "Trapeze", "Square", "Rectangle", "Diamond" };
with random int values in the neighboring cell.
Table can contain all "shapes" or only a part of it (like in the example).
I try to create separate file for each shape form the table and write down corresponding int values to them.
To achieve this I wrote something like that:
QList<QTableWidgetItem *> ItemList
/.../
for(int i = 0; i < rows; ++i)
{
for(int i = 0; i<columns; ++i)
{
foreach(QString itm, shapes )
{
ItemList = ui->tableWidget->findItems(itm, Qt::MatchExactly);
QFile mFile(itm + ".txt");
if(mFile.open(QFile::ReadWrite))
{
for(int i = 0; i < ItemList.count(); ++i)
{
int rowNR = ItemList.at(i)->row();
int columnNR = ItemList.at(i)->column();
out << "Values = " << ui->tableWidget->item(rowNR, columnNR+1)->text() << endl;
}
}
}
mFile.flush();
mFile.close();
}
}
Files are created for every item from the QList – if the shape from the QList is not in the table, an empty file is created.
How to create files only on the basis of available names in the table?

Answer 1

You can write like this.
QList<QTableWidgetItem *> ItemList
/.../
for(QString str : Shapes){
ItemList = ui->tableWidget->findItems(itm, Qt::MatchExactly); // Get the matching list
if(ItemList.isEmpty(){
continue; // If shape does not exist in table skip the iteration
}
QFile mFile(str + ".txt");
if(!mFile.open(QFile::ReadWrite){
return; // This should not happen ; this is error
}
for(QTableWidgetItem *item : ItemList){
int row = item->row();
int col = item->column()+1; // since it is neighboring cell
QString Value = ui->tableWidget->item(row,col)->text();
mFile.write(Value.toUtf8()); // You can change the way in which values are written
}
mFile.flush();
mFile.close();
}