package com.abl.gui;

import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.*;

//Console:
/** like a graphical System.out
    @version 11/29/2000
    @author  I made this. -- prie, 8/15/98
*/
final public class Console {
   /*private*/ static Frame console = null; /* 1.1 workarounds */
   /*private*/ static TextArea textArea = null;
   private static String newline = null;
   /*private*/ static boolean standAlone = true;

   public static void setAppContext(boolean inAnApplet) {
      standAlone = !inAnApplet;
   }

   public static void println(String text) {
      if (console == null) createConsole();
      if (textArea == null) { //create textArea and make visible
         textArea = new TextArea(20, 70);
         console.add("Center", textArea);
         console.pack(); console.setVisible(true);
         newline = System.getProperty("line.separator"); //(grab while here)
      }
      textArea.append(text + newline); //println
   }

   public static void stop(String message) { //after Jack Harich
      Exception ex = new Exception(message);
      ex.printStackTrace();
      console.setVisible(false); //cleanup and exit
      console.dispose();
      if (standAlone) System.exit(911);
      console = null; //force dispose
      textArea = null;
   }

   public static Frame getFrame() { //Dialogs can hang their hats here
      if (console == null) createConsole();
      return console;
   }

   private static void createConsole() {
      console = new Frame("com.abl.gui.Console");
      console.addWindowListener( new WindowAdapter() { //anonymous class to handle:
         public void windowClosing(WindowEvent e) {
            console.setVisible(false); //cleanup and exit
            console.dispose();
            if (standAlone) System.exit(0);
            console = null; //force dispose
            textArea = null;
         }
      });
   }
}