// Dilip Barman  November 24, 1997
// file DebugWindow.java
// 
// I got this idea and copied the core of the code from "Core Java 1.1" vol.1
// pages 598-600 (Sun Microsystems Press, 1997).  In an application or
// applet under development, define a variable of type DebugWindow - e.g.,
//   static DebugWindow dw = new DebugWindow("MyClass");
// (or you can leave out the string -- DebugWindow();)
// then send it the print message with an argument to be printed to the
// debugger window - e.g.,
//   dw.print ("Processing event " + event);
// 


import java.awt.*;             // Window I/O classes
import java.awt.event.*;       // Event classes

public class DebugWindow
  extends Frame 

{

  private TextArea output = new TextArea();  

  // simple single message this class understands - append to debug window
  public void print(Object obj)
  {  output.append ("\n" + obj); }

  // constructor; create window and make it a visible and closeable frame
  public DebugWindow ()
  {
    realConstructor("Debug Window");
  }
  public DebugWindow (Object obj)    // if argument, add to title
  {
    realConstructor("Debug Window: " + (String) obj);
  }

  private void realConstructor (String theTitle)
  {
    setTitle (theTitle);
    output.setEditable (false);
    output.setText ("[" + theTitle + "]");
    
    add (output, "Center");
    setSize (300,300);
    setLocation (500,300);
    setBackground (Color.lightGray);
    setForeground (Color.blue);
 
    addWindowListener    // close window when user asks it to be closed
      ( new WindowAdapter()
        { public void windowClosing (WindowEvent e)
          { setVisible(false); }
        }
      );
    
    show();
  }   // end constructor

} // End DebugWindow class