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Hide horizontal and vertical lines in a JTree

843806Oct 23 2007 — edited Oct 24 2007
Hi,

suppose we have three JTrees in a Windows L&F where the second one shall not show any vertical or horizontal lines for a node. If this restriction would be true for all three JTrees one could invoke 
UIManager.put("Tree.paintLines", Boolean.FALSE)
.

However only the second one must not show any lines. I tried something like
tree.putClientProperty("Tree.paintLines", Boolean.FALSE);
tree.updateUI();
But unfortunately this does not work as the lines are still shown. Furthermore we need to set "on/off" the lines dynamically dependend on the user data.

Does anyone have a clue to solve this problem?

Thx.

Comments

cormaco

If you install Virtualbox on your MacBook, you can use this appliance to get an Oracle database:
Developer Day - Hands-on Database Application Development (oracle.com)

Billy Verreynne

Mac was supported years ago with 10g. Think that even RAC support was planned. (https://docs.oracle.com/cd/B19306_01/install.102/b25286.pdf)
As I heard things went south between Oracle and Apple, and the support for Mac was discontinued.

L. Fernigrini

There are no Mac version for Oracle Databases, but as cormaco mentioned you can easily use VirtualBox to have a VM with Linux (you can use Oracle Linux) and install Oracle 18c XE on it.
Or you can use the VM he already pointed, it has Oracle 19c pre installed, and you can add 18c XE if you need (if you just want to test or do some Proof of Concept, then using the 19c should be OK, if you want to use it for commercial / production then you need either a license or to use the free XE edition).

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Locked on Nov 21 2007
Added on Oct 23 2007
#swing
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