obtaining text from a QListView

Question

Hey, I have a pointer to a third party QListView object, wich is simply displaying rows of text. What is the best way of getting a hold of that string of text?

thanks, Dave

Answer 1

You can ask the QListView object for its root QModelIndex and use that to iterate over the different entries using the sibling/children methods. You can access the text associated with each index by calling the data method on the index with the role specified as the Qt::DisplayRole.

For more details see the following documentation:

QAbstractItemView - parent class to QListView

QModelIndex

Answer 2

The model, accessible by QListView::model(), holds the items. You can do something like this:

QListView* view ; // The view of interest

QAbstractItemModel* model = view->model() ;
QStringList strings ;
for ( int i = 0 ; i < model->rowCount() ; ++i )
{
  // Get item at row i, col 0.
  strings << model->index( i, 0 ).data( Qt::DisplayRole ).toString() ;
}

You also mention you would like to obtain the updated strings when text is written - you can do this by connecting the model's dataChanged() signal to your function that extracts strings. See QAbstractItemModel::dataChanged().