<SOLVED> How to forbid only empty cells in a QTableWidget from selection (or to allow a certain CellWidget() to be selected)

[Olivier Ronat]

Hello
I'm using a QTableWidget and I populate some cells with widgets with setCellWidget( row, column, &widget)..
I want to be able to select only cells with widget but not empty cells.
How to achieve it?

[Chris Kawa]

Something like this should do the trick:

for(int i = 0; i < table->rowCount(); ++i) {
    for(int j = 0; j < table->columnCount(); ++j) {
        auto item = table->item(i, j);
        if(!item) { // make sure there's an item in that cell
            item= new QTableWidgetItem();
            table->setItem(i, j, item);
        }
        if(!table->cellWidget(i,j))
            item->setFlags(item->flags() & ~Qt::ItemIsSelectable);
    }
}

[Olivier Ronat]

Thank you
Note that I succeed in first buiding my QTableWidget with each item set by item->setFlags(Qt::NoItemFlags) and then when I want to insert a wiget proceed with delete takeItem(row,column) before the setCellWidget(row, column, &widget) to insert a widget and retrieve the normal behavior