import javax.swing.*;

import java.awt.*;

import java.awt.geom.*;

import java.awt.event.*;

/**

* Main class for game. Does window stuff and display

*/

public class MyDialog extends JDialog{

// must make instance var since we need it to pass data

DialogPanel dialogPanel;

public MyDialog(JFrame parent){

// must call JDialog constructor,

// final arg true makes show() blocking.

super(parent,"Color Dialog",true);

setSize(200,200); // size in pixels

// new default close action -- equiv to setVisible(false)

setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

// Add panel

dialogPanel= new DialogPanel(this);

getContentPane().add(dialogPanel);

}

public Color getCurrent(){

// just forward request

return(dialogPanel.getCurrent());

}

}

class DialogPanel extends JPanel{

// the dialog that contains me, needed to call isVisible(false)

JDialog dialog;

// This color is not used to draw, it is just the 'model' that

// this dialog alters. This data is retrieved by the main app

// through the getCurrent9) method

Color current = Color.black;

// Handler for Mouse presses and clicks

// Extends MouseAdapator

// (which implements MouseListener with empty methods)

// We use an inner class so we can access to data on JPanel

JButton toggle = new JButton("Toggle");

JButton green = new JButton("Green");

JButton ok = new JButton("OK");

// Button listener. Now an inner class so we

// can access mypanel data.

class ButtonHandler implements ActionListener{

public void actionPerformed(ActionEvent e){

// check source, if green button, set color

if(e.getSource() == green){

current = Color.green;

}

else if(e.getSource() == toggle){ // do toggle stuff

if(current.equals(Color.red))

current = Color.blue;

else

current = Color.red;

}

else{ // OK

// setVisible(false) close dialog and causes show() to return!

dialog.hide();

}

}

}

DialogPanel(JDialog dialog){

// make one instance of listener and add to all

this.dialog = dialog;

ButtonHandler b = new ButtonHandler();

toggle.addActionListener(b);

green.addActionListener(b);

ok.addActionListener(b);

// add buttons (and text field)

add(toggle);

add(green);

add(ok);

}

public Color getCurrent(){

return(current);

}

}