package bmpviewer;
import java.awt.*;
import java.awt.event.*;
import java.util.*;

/**
 * Dialog to display messages.
 * <p>
 * @author      Hiroyuki Murata
 * @since       JDK1.1
 */
public class MessageDialog extends Dialog
 implements ActionListener,WindowListener {

    MessageDialog(Frame frame, String title, String msg) {
        super(frame, title);
        setBackground(Color.lightGray);
        addWindowListener(this);

        StringTokenizer st = new StringTokenizer(msg,"\n");
        int clm=0, row=0;
        while (st.hasMoreTokens()) {
            int len = st.nextToken().length();
            if (clm < len)
                clm = len;
            row++;
        }

        TextArea ta = new TextArea(msg, row,clm, TextArea.SCROLLBARS_NONE);
        //Font font = new Font("Monospaced", Font.PLAIN, 12);
        //ta.setFont(font);
        add("Center",ta);

        Panel pBtn = new Panel();
        add("South",pBtn);
        Button btnOK = new Button("OK");
        pBtn.add(btnOK);
        btnOK.addActionListener(this);

        pack();
        setVisible(true);
    }

    public void paint(Graphics g) {
        pack();
        super.paint(g);
    }

    // as ActionListener ("OK") ----------------------------
    public void actionPerformed(ActionEvent ev) { setVisible(false); }

    // as WindowListener -----------------------------------
    public void windowClosing(WindowEvent ev) { setVisible(false); }
    public void windowOpened(WindowEvent ev) {}
    public void windowClosed(WindowEvent ev) {}
    public void windowIconified(WindowEvent ev) {}
    public void windowDeiconified(WindowEvent ev) {}
    public void windowActivated(WindowEvent ev) {}
    public void windowDeactivated(WindowEvent ev) {}
}