| Resize tree on collapsing and expanding [message #1748340] |
Tue, 22 November 2016 11:04  |
 Michiel Werk
Messages: 3
Registered: July 2009 |
Junior Member |
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Hi,
I like to resize the tree when the tree collapses and expands so that it only takes up the space that it needs. For this I am using this piece of code:
tree.addTreeListener(new TreeListener()
{
@Override
public void treeExpanded(TreeEvent e)
{
tree.getParent().pack();
}
@Override
public void treeCollapsed(TreeEvent e)
{
tree.getParent().pack();
}
});
However, the events are to early to call pack on the parent and no resize is done. When calling pack just a little bit later works perfectly. Is there anybody that does know how to solve this?
Thanks, Michiel
[Updated on: Tue, 22 November 2016 11:24] Report message to a moderator |
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| Re: Resize tree on collapsing and expanding [message #1748421 is a reply to message #1748340] |
Wed, 23 November 2016 00:47  |
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You can use asyncExec() to submit a task to run in the UI event queue:
tree.getDisplay().asyncExec(new Runnable() {
public void run() {
tree.getParent().pack();
}});
That's usually sufficient.
Eclipse Platform committer. Ask me about Eclipse support, training, and consulting.
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