How can I relay Events to other Listeners?

Question

Hello,
I'm writing an application consisting of one JFrame that holds 2 JPanels, a Panel with my "Tools" and a Panel that works as "Worksheet". I implented the feature, that you can drag a Tool from the Tools-Panel to the Worksheet-Panel.
Now, additionally, I want to implement the feature in the Worksheet-Panel that you can replace an element by mouseDragged(..). I tried to implement this by using the GlasPane from the JFrame ...
My Problem: The GlassPane seems to catch all events from both Panels and now the Drag&Drop feature from the Tools-Panel don't work any more.
My Question: How can I relay the Mouse-Events catched by the GlassPane to all other MouseEvent-Listeners?
Here my Worksheet-Panel, it add itself to the GlasPane-MouseListener List
public class Worksheet_Panel extends javax.swing.JPanel implements WorksheetInterface {
    public Worksheet_Panel(Component GlasPane) {
         GlasPane.addMouseListener(listener);
         GlasPane.setVisible(true);
    public void mousePressed(MouseEvent e) {
    }Thanks for any help
Edited by: AddForumListener on Feb 10, 2008 4:06 AM

Answer 1

AddForumListener wrote:
thanks. it's an interest method.
but i think that don't work for my situation because the Class where the event is handled don't know which other components has an interest on that event.
I think I will try to create an own glasspane which covers my worksheet-panel and its components.
greetingsI do not know if this will be useful because I did not understand what you are trying to achieve since I did not see your code fully. However you can reach the other components which are interested in listening the mouse events of the source component that created the mouse event. What I mean is you can add the following in the mousePressed method of your glasspane component for instance:
public void mousePressed(MouseEvent e)
     Component source = (Component) e.getSource();
     MouseListener[] listeners = source.getMouseListeners();
     // Iterate through the mouse listeners, determine to which listener
     // you would like to relay the mouse event and relay it as I mentioned above.
     for (int i = 0; i < listeners.length; i++)
} Anyway, good luck!!!