Get the actual row number of QTableView after drag and drop - c++

Question

At first, the data of the tableview are
apple
pie
banana
After drag and drop(only drag and drop on itself) the item on the tableview, the data of the tableview looks like following
banana
pie
apple
but when I want to iterate the item of the model one by one
codes
for(int i = 0; i != rowCount(); ++i){
if(item(row, Fruit)){
return item(row, Fruit)->data(Qt::DisplayRole).value<QString>();
}
}
it print the data as
apple
pie
banana
expected result
banana
pie
apple
How could I get the “actual” number after drag and drop?
The easiest solution I can think of is create one more column to store the row number of the model, then override the dropEvent, update the row number when the user drop their row.Any easier way to do it?
Edit :
As the example show, the result I want with the codes is "pie, apple, banana".But the actual result is "banana, pie, apple"

Answer 1

The model always operates on the logicalIndex. You need to use the visualIndex of the verticalHeader() for iterating.
for(int i = 0; i < rowCount(); ++i)
{
// i is the logicalIndex
int row = your_table->verticalHeader()->visualIndex(i);
if(item(row, Fruit))
return item(row, Fruit)->data(Qt::DisplayRole).value<QString>();
}