Initialising a pointer to QListWidgetItem Qt 5.8 - c++

Question

In my program I have a series of tabs and on each tab there is a combobox and a QListWidget. Based on the selection on the combobox the QListWidget will be populated.
Now what I am trying to achieve is that one the user presses a "APPLY" button after selecting a series of items on the "checkable" list widget for a given selection in combobox, I will read the bool status of each item on the list widget by using a pointer QListWidgetItem pointer to the list widget
This is part of my code;
void MainWindow::on_applyButton_clicked()
{
//Reset list
MainWindow::revenueList.clear();
//Processing income statement
//Select the first item on inc_st_combo
ui->inc_st_comb->setCurrentText("Revenue Growth");
//Create an iterator
QStringListIterator iter(MainWindow::revenue_labels);
//Loop through the list widget and read bool status
while(iter.hasNext())
{
//Index for the QList
int index = 0;
//Create a QListWidgetItem pointer
QListWidgetItem *listItem = new QListWidgetItem(iter.next(),Ui_MainWindow::inc_st_list);
bool status = listItem->checkState();
qDebug() << "Status: " << status << endl;
MainWindow::revenueList.append(status);
}
qDebug() << "List: " << MainWindow::revenueList << endl;
}
My problem is that when I try to initialise the QLsitWidgetItem on the following line;
QListWidgetItem *listItem = new QListWidgetItem(iter.next(),Ui_MainWindow::inc_st_list);
Qt return the following error;
/Users/Vino/Documents/My Stuff/Qt Projects/Fundemental Analysis/FundementalAnalysis/mainwindow.cpp:389: error: invalid use of non-static data member 'inc_st_list'
QListWidgetItem *listItem = new QListWidgetItem(iter.next(),Ui_MainWindow::inc_st_list);
~~~~~~~~~~~~~~~^~~~~~~~~~~
How do I initialise the QListWidgetItem pointer to point at a particular listWidget on the form?

Answer 1

If you want a pointer to an already existing object you won't use new, you need to assign it the address of the existing object:
int pos = 0; //determine the right position
QListWidgetItem *listItem = ui->inc_st_list->item(pos);