Adding button to QTableview

Question

I have created one table by using QTableview and QAbstractTableModel . In one of the cells, I want to add one help button in the r

Answer 1

I've got a solution WITHOUT any complex re-invention of the whole paint-processes. I have a TableView in which I have a button in every row. Note, that, in my case the for loop runs through each row.

QSignalMapper *signalMapper = new QSignalMapper(this);

for( int i=0; iindex(i, COLUMN_FOR_WHATEVER_YOU_WANT);
     model->setData(item, QVariant::fromValue(yourObject.getSpecificInformation()));

     //make new button for this row 
     item = model->index(i, COLUMN_BUTTON); 
     QPushButton *cartButton = new QPushButton("Add");
     ui->table_view->setIndexWidget(item, cartButton);

     signalMapper->setMapping(cartButton, i);
     connect(cartButton, SIGNAL(clicked(bool)), signalMapper, SLOT(map()));
}
connect(signalMapper, SIGNAL(mapped(int)), this, SLOT(doSomething(int)));

Then you automatically get the index of the row in which the user clicked the button. You just need to make your own slot:

private SLOTS:
    void doSomething(int row);

If you have specific cells, it would work similar.

Note, that I did not care about memory leaks in this example, and I don't exactly know what would happen if you update your TableView... (It's working fine, but it might not delete the old button-pointers when new ones are created)