MouseListener with CheckBoxTree

[Daan]

Hey all,

I am using a CheckBoxTree and want to detect clicks on the items in it. To this end, I created a MouseListener which I added to my CheckBoxTree.

In my mouselistener I do the following to get the TreePath that is clicked:

Code: Select all

public void mousePressed( MouseEvent e )
    {
        if ( e.getComponent() instanceof CheckBoxTree )
        {
            CheckBoxTree tree = (CheckBoxTree)e.getComponent();
            TreePath path = tree.getPathForLocation( e.getX(),  e.getY() );
        }
    }


Now, I only want to do something when the label of the path is clicked, not the checkbox. I cannot figure out how to check this. I tried calling getComponentAt(x,y) several times on the tree (as each call only goes 1 level deep), but this keeps returning the CheckBoxTree.

Any ideas?

[Daan]

Ok I managed to work around it in the following manner:
ask the CheckBoxTree whether the path is selected, if it isn't, do nothing.
If the path is selected, I can call some other (application specific) functions to determine whether some function (the one that needs to be called when the user clicks on the label and not the checkbox) needs to be called.

But this is not very elegant, to say the least. I would still like to know if there is a way to use only the MouseEvent and the CheckBoxTree to determine whether the mouse clicked occurred on a checkbox or a label.

[JIDE Support]

Please give the following code a try.

Code: Select all

        int _hotspot = new JCheckBox().getPreferredSize().width;
        protected boolean clicksInCheckBox(MouseEvent e, TreePath path) {
            if (!_tree.isCheckBoxVisible(path)) {
                return false;
            }
            else {
                Rectangle bounds = _tree.getPathBounds(path);
                if (_tree.getComponentOrientation().isLeftToRight()) {
                    return e.getX() < bounds.x + _hotspot;
                }
                else {
                    return e.getX() > bounds.x + bounds.width - _hotspot;
                }
            }
        }


Thanks,

[Daan]

Works like a charm! Thanks!