package gui;import jj2000.j2k.encoder.*;import jj2000.j2k.util.*;import jj2000.j2k.*;import javax.swing.event.*;import javax.swing.*;import java.awt.*;/**  * Implementation of MsgLogger for outputting JJ2000 messages in dialog boxes * */class JJPopup implements MsgLogger {    /** Reference to the main frame */    private JDesktopPane desktop;    /** Buffer for information messages */    private String infoBuffer = "";    /** Buffer for warning messages */    private String warningBuffer = "";    /** Class constructor */    public JJPopup(JDesktopPane desktop) {	this.desktop = desktop;    }    /** Reinitialize info and warning buffers */    public void reset() {        infoBuffer = "";        warningBuffer = "";    }    /** Flush the content of each buffer in corresponding dialog boxes */    public void flush() {	if(infoBuffer!="") {            JTextArea ta = new JTextArea(infoBuffer,10,40);            ta.setEditable(false);            ta.setBackground(Color.lightGray);	    JOptionPane.                showInternalMessageDialog(desktop,new JScrollPane(ta),                                          "info",                                          JOptionPane.INFORMATION_MESSAGE);	}	if(warningBuffer!="") {            JTextArea ta2 = new JTextArea(warningBuffer,10,40);            ta2.setEditable(false);            ta2.setBackground(Color.lightGray);	    JOptionPane.                showInternalMessageDialog(desktop,new JScrollPane(ta2),                                          "Warning",                                          JOptionPane.WARNING_MESSAGE);	}	infoBuffer = "";	warningBuffer = "";    }    /** Appends information message to the relevant buffer */    public void println(String str, int flind, int ind) {	infoBuffer += str+"\n";    }    /** Appends message to the relevant buffer */    public void printmsg(int sev, String msg) {	switch(sev) {	case MsgLogger.INFO:            infoBuffer += msg+"\n";	    break;	case MsgLogger.WARNING:            warningBuffer += msg+"\n";	    break;	case MsgLogger.ERROR:	    JOptionPane.showInternalMessageDialog(desktop,msg,"Error",						  JOptionPane.ERROR_MESSAGE);	    break;	default:	    JOptionPane.showInternalMessageDialog(desktop,"Severity "+sev+						  " not valid.","Warning",						  JOptionPane.WARNING_MESSAGE);	    throw new IllegalArgumentException("Severity "+sev+" not valid."); 	}    }}