Adding a JList to a Graphics2D

spank · 10-27-2007, 12:09 PM

I want to add a JList object from javax.swing.* to a Graphics2D interface, and I don't know how to do that.

Sorry if I formulated my question a little childish but I have no idea of java. If you have any advice....

Thank you!

Nylex · 10-28-2007, 06:50 AM

Could you explain what you're trying to do (in normal English, rather than Java-speak) please? Why do you want to add a JList to a Graphics2D? I'm not even sure what you mean by that.

spank · 10-28-2007, 07:19 AM

well I want to make am applet. Here is what I have done so far http://spank.as.ro/

I want to insert in the bottom left square a JList to enter the events that I have done in the big window. Something like a history.

The window is created with

Code:

		image=(BufferedImage)createImage(this.getSize().width,this.getSize().height);
		graphics=(Graphics2D)image.getGraphics();

in the init() function of the aplet

Nylex · 10-28-2007, 07:37 AM

You need to add your JList to some kind of container (like a (J)Panel, for example).

spank · 10-28-2007, 07:43 AM

and can I add a JPanel to my interface ?

Nylex · 10-28-2007, 07:52 AM

Yes, you can.

spank · 10-28-2007, 07:55 AM

any hints on how to do that? just to save some time.... because I still have to work allot on it

Nylex · 10-28-2007, 08:14 AM

I haven't done any applet programming myself, but here's a simple example (that I've pretty much taken from the Java tutorial and changed a bit. It creates an applet with a button on a panel.

Code:

import javax.swing.*; // For JPanel

public class Test extends JApplet {

    JPanel panel;

    public void init() {
        //Execute a job on the event-dispatching thread:
        //creating this applet's GUI.
        try {
            SwingUtilities.invokeAndWait(new Runnable() {
                public void run() {
                    createGUI();
                }
            });
        } catch (Exception e) {
            System.err.println("createGUI didn't successfully complete");
        }

        //addItem(false, "initializing... ");
    }

    private void createGUI() {        
        //Create the text field and make it uneditable.
        panel = new JPanel();
        JButton b = new JButton("Stuff");
	panel.add(b);

        //Set the layout manager so that the text field will be
        //as wide as possible.
        setLayout(new java.awt.GridLayout(1,0));

        //Add the text field to the applet.
        add(panel);
    }

    // Other methods like start() and stop() need to go here
}

Nylex · 10-28-2007, 08:25 AM

You may want to add your JList to a JScrollPane and then add that JScrollPane to the panel, but obviously that's if you think you'll need scrollbars!