QTreeView: include root in tree?

[meter]

I am trying to list a directory using QTreeView, but I would like to include the root in the tree (but no other files from the same level as root). In other words, assuming I am user hovercraft, what I get with

QDirModel model;
QTreeView tree;
tree.setModel(&model);
tree.setRootIndex(model.index(QDir::homePath()));

QDirModel model;
QTreeView tree;
tree.setModel(&model);
tree.setRootIndex(model.index(QDir::homePath()));

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is:

-bar
-baz
--naz
--naznaz
--naznaznaz
---todd-is-god
-boz
-foo

What I want is:

-hovercraft
--bar
--baz
---naz
---naznaz
---naznaznaz
----todd-is-god
--boz
--foo

Is there a nobrainer way to do this?

-M