//ScrollPaneTest.java
//more showMessageDialog, showInputDialog
//showConfirmDialog demo
//JTextArea, JScrollPane demo

import java.awt.*;
import javax.swing.*;

//public class ScrollPaneTest extends JApplet {     
public class ScrollPaneTest {     

    //public void init() {
    public static void main(String[] argv) {

/*
Gussying-up showMessageDialog:  4 argument version of it:
JOptionPane.showMessageDialog(null,
                              String message,
                              String title,
                              JOptionPane.message_type);
the message_type is:
 ERROR_MESSAGE
 INFORMATION_MESSAGE    is the default for showMessageDialog
 WARNING_MESSAGE
 QUESTION_MESSAGE
 PLAIN_MESSAGE  
you get different icons with the different message types 
(except PLAIN_MESSAGE has no icon).

Examples:
*/
	//2 argument version that we're familiar with:
	JOptionPane.showMessageDialog(null, "whatever message here");
	//4 arguments:
	JOptionPane.showMessageDialog(null, 
				      "some message here",
				      "some title here",  
				      JOptionPane.PLAIN_MESSAGE);
	JOptionPane.showMessageDialog(null, 
				      "I'm sorry but that is no good",
				      "Invalid input",
				      JOptionPane.ERROR_MESSAGE);

	String input;
	//1 argument showInputDialog that we're familiar with:
	input = JOptionPane.showInputDialog("Enter your name");

	//showInputDialog has the 4 argument version also:
	input = JOptionPane.showInputDialog( null, 
					     "Enter your name",
					     "Name Entry Window",
					     JOptionPane.PLAIN_MESSAGE);
	                                //QUESTION_MESSAGE is default

	//showConfirmDialog only allows user to click Yes or No
	int userAnswer;  //note it's an int variable.
	userAnswer = JOptionPane.showConfirmDialog(null,
						   "Do you want to do X",
						   "some title message",
						   JOptionPane.YES_NO_OPTION);
	//check value returned by showConfirmDialog
	if (userAnswer == JOptionPane.YES_OPTION)
	    JOptionPane.showMessageDialog(null,"user clicked Yes");
	else
	    JOptionPane.showMessageDialog(null,"user clicked No");
/*
custom image in JOptionPane:

ImageIcon myimageicon;    
myimageicon = new ImageIcon(getClass().getResource("trees.gif"));    

JOptionPane.showMessageDialog(null, 
    "whatever message or textarea/scrollpane",
    "title bar message",
     JOptionPane.PLAIN_MESSAGE,
     myimageicon);  //5th parameter is icon image 
*/

	//Adding a JTextArea

	//declare and instantiate a JTextArea object:
	JTextArea mytextarea = new JTextArea(10,60);  //optional: rows,cols
	//optional: allow line wrap:
	mytextarea.setLineWrap( true );
	//optional: different font:
	mytextarea.setFont( new Font("Courier",Font.BOLD,18) );

	//setText method puts string into the textarea object: 
	//wipes out any already there
	mytextarea.setText("hello");

	//append method adds more text into the textarea object:
	for (int i=1; i<25; i++)
	    mytextarea.append ("\nasdfasdfasdf "+i);

	//the JTextArea object can then be put into a showMessageDialog
	JOptionPane.showMessageDialog(null, 
				      mytextarea,
				      "JTextArea in a JOptionPane",
				      JOptionPane.PLAIN_MESSAGE);


	//Add a scrollbar for the textarea:
	JScrollPane myscrollpane = new JScrollPane(mytextarea);

	//do the same stuff with the JTextArea object as before...
	//But, attach the JScrollPane object to showMessageDialog:
	JOptionPane.showMessageDialog(null, 
				      myscrollpane,
				      "JTextArea in a JScrollPane in a JOptionPane",
				      JOptionPane.PLAIN_MESSAGE);
    }
}