Why doesn't nodeChanged call trigger the cellrenderer of the given Node to be executed in a Jtree?

Question

I have an application where the JTree nodes contain JProgressBars. I use a function like this to update the UI for the given node:

public void setProgressForNode(DefaultMutableTreeNode node, int progressValue)
{
    ((ExecutionItem) node.getUserObject()).setProgressValue(progressValue);
    originalModel.nodeChanged(node);
}

This function is called whenever the node that holds the progressbar should be updated to the given value. nodeChanged(node) should update the UI but it doesn't. Anyone has idea? What I can see is the renderer is not called for the given node after calling nodeChanged(node). If I click the node in the tree continually during the "execution" progress the renderer is called so that the progressbar updates.

Thanks!

Answer 1

if im not mistaken there is a Invalidate in most object in C# and Java In my experience that is the one to use then you want to redraw a control/object like procesbars.

if it is postible it is maybe something like this:

Node.Invalidate()

that should force a redraw of the ui no matter what its doing Good luck to ya

Answer 2

Try using the below;

DefaultMutableTreeNode parent = (DefaultMutableTreeNode) node.getParent();
originalModel.nodeStructureChanged(parent);