问题
I want to implement copy and paste operation in my QTreeView against my context menu copy and paste I have subclass QAbstractItemModel. I have Treeview Say Four Tope level items and each of them are having multiple child
Top Item1
----------
Child1
Child11
Child111
Top Item2
----------
Top Item3
I want to right on click item "child1" and copy child1 and all its child up to child111 and then right click and paste on "Top Item3" so that all items from child1 to child111 is copied under Top Item3.
回答1:
After pressing copy you should store pointer to Child1. After pasting to Top Item Tree3 you create new child in it and copy contents of Child1 to new child. This should be done recursively.
来源：https://stackoverflow.com/questions/11735791/qtreeview-with-my-model-how-to-implement-copy-paste-operation