env: java se 6
i working on eclipse rcp application. how create treeitems tri-state checkbox. eclipse ide update package interface. use swt treeitem class now, provides api, setchecked(bool), true/false states.
the filled in check box known 'grayed'.
with checkboxtreeviewer use setgrayed, setgraychecked, setgrayedelements methods set grayed items.
with treeitem use setgrayed method.
it code logic determining when node should grayed.
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