SRL Archive - Java Help and Tutorials

Is it possible to have a JList, update in a JScrollPanel during Runtime?

I want to be able to add a string to the JList during runtime, and then have it be displayed in a JScrollPane during runtime.

An example would be RSBot's debug console at the bottom of their GUI.

I don't know how they do it though.

My ultimate goal is to create that kind of GUI, not a RS Client just the debug part.


Thanks, JP


PS I have been messing around with it and I just cannot make it work.

I can't attach source code as I'm not at my house.

I believe below is what your looking for.. U can add to a list/combobox at anytime during runtime..

Im not a java user so I wouldn't know. I can read it but not write it.. if u can translate c++ to java then I'd write the code for u.. The code below is from the sun java website and it seems to do what u ask..

//The action that will be performed.. Maybe a button press.. I would personally change this event to Control.Changed or something instead of waiting on a button press to do it..
public void actionPerformed(ActionEvent e) {

     String name = employeeName.getText(); //Grab the text from user 

     //User did not type in a unique name...     
   if (name.equals("") || alreadyInList(name)) {
         Toolkit.getDefaultToolkit().beep();
         employeeName.requestFocusInWindow();
         employeeName.selectAll();
         return;
     }  
   
 int index = list.getSelectedIndex(); //get selected index
     if (index == -1) { //no selection, so insert at beginning
         index = 0;
     } 
else { 
          //add after the selected item 
        index++;
     } 

//I would personally change this to append to the list.. 
//By doing (Index count - 1) then insert element to that.

 [B]listModel.insertElementAt(employeeName.getText(), index);[/B] 
     //Reset the text field.    
 employeeName.requestFocusInWindow();
     employeeName.setText("");      //Select the new item and make it visible.
     list.setSelectedIndex(index);
     list.ensureIndexIsVisible(index);
 }

use a DefaultListModel. Attach it to the JList then use listModelInstance.addElement("YOUR_STRING");