I have a panel that houses a tree control. I have noticed that the
tree's horizontal scrollbar has a bad habit of appearing when it
shouldn't, so I had decided to set its hScrollPolicy to "off", and
thereafter turning it on manually as needed.
In order for this to be possible, I need to know the width of the tree
after a node has been opened. This is because an opened node could
effectively make the tree width wider, depending on how long the text
of the child nodes are.
Checking the documentation, it seems like the method, calculateWidth
(), is my answer. However, doing tree.calculateWidth() always returns
NaN, making it useless.
Am I using it wrong? Or is it even known to work?
Any feedback from anyone would be greatly appreciated, because I need
to make my tree component behave. Thanks.
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