java - How to update tree node size with custom model? -

i using custom model in jtree. when label of node changes, passing treemodelevent listeners in following way:

       protected void firenodechanged(treepath path) {             treemodelevent evt = new treemodelevent(this, path);             for(treemodellistener listener : listeners) {                 listener.treenodeschanged(evt);             }         } 

where path path changed node, including itself.

this causes title change, size of not:

swing truncates title , adds ellipsis (pointed red arrow).

how fix this? note have custom model , can't call nodechanged, should emulate it.

without snippet there several guesses make, situation seems familiar me. try adding renderer jtree performs updateui() on rendering component before returning it:

tree.setcellrenderer(new defaulttreerenderer() {     public component gettreecellrenderercomponent(jtree tree, object value,             boolean selected, boolean expanded, boolean leaf, int row,             boolean hasfocus) {         component c = super.gettreecellrenderercomponent(tree, value,                 selected, expanded, leaf, row, hasfocus);         // can more changes here         ((jcomponent) c).updateui();         return c;     }}); 

about updating, if "emulating" means implementing , what's supposed do, that's correct. long implements treemodel , methods what's supposed, jtree should rest.

the truncation might related fact trees , tables not lay "components" out use renderers instead paint them in faked containers.

and, way, can have @ eventlistenerlist proper collection of event listeners.