/**
 * Class for making a simple drawing with Turtles
 *
 * @author Pat Troy: troy AT uic DOT edu
 */
//  This example has the turtle draw in a picture that can be saved.

import java.util.*;
import java.awt.*;

public class Lect107i
{
  public static void main(String[] args)
  {
    // create the picture and a turtle
    String fileName = FileChooser.pickAFile();
    Picture pict = new Picture (fileName);
   
    // get an array of pixels
    Pixel pixArray[];
    pixArray = pict.getPixels();
    
    System.out.println ("Width: " + pict.getWidth());
    System.out.println ("Height: " + pict.getHeight());
    System.out.println ("Total Pixels: " + pict.getWidth() * pict.getHeight());
    
    System.out.println ("Array Length: " + pixArray.length );
    System.out.println ( pixArray [0] );
    
    int index;
    Pixel pix;
    Color cl1, cl2;
    int red, green, blue, gray;
    
    for ( index = 0 ; index < pixArray.length ; index++ )
    {
      //System.out.println ( pixArray [index] );
      pix = pixArray[index];
      cl1 = pix.getColor();
      red = pix.getRed();
      green = pix.getGreen();
      blue = pix.getBlue();
      
      // create black and white
      gray = (int)(red*.299 + green*.587 + blue*.114);
        
      pix.setRed   (gray);
      pix.setGreen (gray);
      pix.setBlue  (gray);
      pixArray[index] = pix;
    }
    
    // display the picture
    pict.explore();
    
    // save the picture to the computer
    // Note:  Be sure to add the .jpg to the end of the filename!!!!!
    fileName = FileChooser.pickAFile();
    System.out.println(fileName);
    pict.write (fileName);

  }
  

  
  
}