Flatten a hierarchical tree model

[sajis997]

Hello forum,

I have created a tree hierarchy by subclassing the QAbstractItemModel and assigned the model to the tree view. I also have a line edit above in the layout widget which needs the QCompleter support. Instead of the completion one level at a time i would like to give the line completion support for all the tree item data that matches the entered string. In that case i need to create a proxy model and flatten the original tree there, i believe.

Any idea how to browse through the original tree and flatten it out ?

Any hint, example application or reference would be very helpful. I have check the official manual and it did not cover much on this issue.

Regards
Sajjad