Question

JTree mouse focus

Asked by: zolf

hello there,

i have a jtree which i want to give access right to privilege users.now when i clcik on the value of the jtree i get a jdialog which says cannot display details because of insufficient privilege.but when i click on the round thingy on the jtree it expands the jtree.
another problem is when i single clcik on the node it does not give access,but when i double clcik on it,the jtree expands.how do i also check for double clcik.
my code is below

tree.addMouseListener(new MouseAdapter() {
              public void mousePressed(MouseEvent me) {
                  Object obj = tree.getLastSelectedPathComponent();
                  if(obj != null) {
                        DefaultMutableTreeNode select = (DefaultMutableTreeNode)obj;
                        //System.out.print("select != lastSelectedNode  ");
                        System.out.println(select != lastSelectedNode);
                        if (select != lastSelectedNode)
                        {
 
                              Object uObject = select.getUserObject();
                              
                              pk = ((BaseRow)uObject).getPrimaryKey();
                              fk = ((BaseRow)uObject).getForeignKey();
                              System.out.println(pk);
                              System.out.println(fk);
                              
                              switch(((BaseRow)uObject).getType()) {
                                     case BaseRow.CITY_TYPE : {
                                           changeCard(rightCardPanel, CITY_CO_DSLAM_PANEL);
                                           int index = 0;
                                           
                                           if(privilege == 2 || privilege == 3)
                                           {
                                           if(pk == Login.cityVi

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Asked On
2007-07-08 at 01:43:53ID22681662
Tags

jtree

,

focus

,

mouse

Topic

Java Programming Language

Participating Experts
1
Points
500
Comments
4

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Answers

 

by: StillUnAwarePosted on 2007-07-08 at 03:33:11ID: 19439635

You should add the TreeWillExpandListerner instead of MouseAdapter:

there is a convenience method for that in a JTree:

void addTreeWillExpandListener(TreeWillExpandListener tel);

see an example on that:
http://java.sun.com/docs/books/tutorial/uiswing/events/treewillexpandlistener.html

 

by: zolfPosted on 2007-07-08 at 04:31:09ID: 19439696


how will this replace my code.please help

 

by: StillUnAwarePosted on 2007-07-08 at 04:36:45ID: 19439704

I guess this should be enough:

replace first two lines

tree.addMouseListener(new MouseAdapter() {
              public void mousePressed(MouseEvent me) {

with these

tree.addTreeWillExpandListener(new TreeWillExpandListener() {
              public treeWillCollapse(TreeExpansionEvent event) {
              }
              public treeWillExpand(TreeExpansionEvent event) {
              ... // here follows the rest of the code

 

by: StillUnAwarePosted on 2007-07-08 at 23:30:24ID: 19443201

glad to help

20120131-EE-VQP-002

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