How to undo an edit of a QListWidgetItem in PySide/PyQt?

Question

Short version

How do you implement undo functionality for edits made on QListWidgetItems in PySide/PyQt?

Hint from a Qt

Answer 1

I would do it like this:

Create a custom QItemDelegate and use these two signals:

• editorEvent
• closeEditor

On editorEvent: Save current state

On closeEditor: Get new state and create a QUndoCommand that set the new state for Redo and the old state for Undo.