//*****************************************************************************
//
// Beenish Chaudry, Geetika Tewari, Elif Tosun and
// Ileana Streinu
//
// Summer 1999, Fall 1999, Spring 2000
//
//*****************************************************************************
//
// FrameInfo.java
// Prints out the coordinates of the points drawn on the PointCanvas
// and other information (later)
//
//*****************************************************************************

import java.awt.*;
import java.awt.event.*;
import java.lang.*;
import java.io.*;
import java.util.*;

class FrameInfo extends Frame
implements PointSetObserver{

TextArea ta;
FramePoint bf;
int strall;

  //**************************
  //
  // Constructor
  //
  //**************************


  public FrameInfo(FramePoint bff, String title)
  {
    super(title);
    bf = bff;

    //setVisible(true);
    setVisible(Constants.infoFrameStart);

    ta = new TextArea(30, 20);
    add(ta);
    
    setBounds(Constants.xFI, Constants.yFI,
	      Constants.wFI, Constants.hFI);
    
    bf.ps.registerAsObserver(this);
  }
  

  //*************************************
  //
  // Reset
  // Clears Info with some information
  //
  //*************************************

public void Reset() {
int c;
String all;
int sum = 0;

all = "\nPoint Set: \n" 
      + " ---------------------------------------------- \n"
      + "Origin = (" +bf.ps.or.x + ", " + bf.ps.or.y + ")\n" 
      + bf.ps.unitL.ToString()+ "\nwOrient = " + bf.ps.wOrient + "\n";
       //n = " + bf.ps.n + "\n";

c = all.length();


ta.replaceRange("", 0, strall);
ta.replaceRange(all, sum, sum+c );
strall = 0;

  }

  
//************************************************************
  //
// PointSetHasChanged
// Info. on infoframe changes when changes are made to the PS
  //
//************************************************************

public void PointSetHasChanged(PointSet ps) 
{

int a, b, c;
int i = ps.ptList.Length() -1;

LList ptr;

String abs, rel, both = "", unitL, all;

int sum = 0;


if (bf.mb.viopen.getState() == true)
  {
    
    all = "\nPoint Set: \n" 
      + " ---------------------------------------------- \n"
      + "Origin = (" +bf.ps.or.x + ", " + bf.ps.or.y + ")\n" 
      + "Unit Length = " + bf.ps.unitL.ToString() + "\n";
    
    if (bf.ps.wOrient) all = all + "Orientation: Y up \n";
    else all = all + "Orientation: Y down \n";
    
    //      + "wOrient = " + bf.ps.wOrient + "\n";
    
    c = all.length();
    
    ta.replaceRange(all, sum, sum+c ); //Prints the info on the textarea
    
    sum = sum +c;
    
    for (ptr = bf.ps.ptList; ptr != Constants.nullCell; ptr = ptr.next) 
      {
	abs = ptr.data.ToStringAbsolute(); //String of old coordinates
	rel = ptr.data.ToStringRelative(); //String of new coordinates
	
	a = abs.length(); //length of old coordinates
	b = rel.length(); //length oif new coordniates
	both = abs.concat(rel);
	
	ta.replaceRange(both, sum, (sum+a+b));
	sum = sum + a + b; //adds up all the strings of the old and new coordinates
	strall = sum +60;
	i--;
	//60 is added to get rid of the extra string at the end of the infoframe
      }
    ta.replaceRange("", sum, strall);
  }
}// end PointSetHasChanged

}//end class FrameInfo