/**
 * Class for creating a template for a simple Java program
 * 
 * @author Pat Troy: troy AT uic DOT edu
 */

// import the library with the color information
import java.awt.Color;
import java.io.File;

// Note the name of the class in the following line MUST
// match the name of the file.  This is stored in a file
// named: Template.java 
public class Lect1028a
{
  
  public static void main (String[] args) 
  {
    System.out.println("Begin Java Exection");
    System.out.println("");

    // Select two pictures
    String filename;
    filename = FileChooser.pickAFile();
    System.out.println (filename);
    int pos = filename.lastIndexOf(File.separatorChar);
    String s2 = filename.substring (0, pos);
    System.out.println (s2);
    FileChooser.setMediaPath(s2);
    
    System.out.println (FileChooser.getMediaDirectory());
    Picture pict1 = new Picture(FileChooser.getMediaDirectory() + 
                                File.separator + "jenny-red.jpg");
    System.out.println (pict1);
    
    // copy the pixels from pict1 into anotherPicture
    pict1 = reduceRedEye (pict1, 121, 95, 134, 106);
    pict1 = reduceRedEye (pict1, 175, 91, 187, 104);
    
    // display the picture
    pict1.explore();
    
    // Save the picture
    //String fname;
    //fname = FileChooser.pickAFile();
    //System.out.println ("File: " + filename);
    //pict1.write (fname);

    System.out.println("");
    System.out.println("End Java Exection");
  }   // end of the method main
  
  
  public static Picture reduceRedEye (Picture p1,
                                      int startX, int startY,
                                      int endX, int endY)
  {
    int width = p1.getWidth();
    int height = p1.getHeight();
    Color targetColor = new Color(179, 24, 42);
    
    // error check the X and Y parameter values
    if (startX < 0)
    {
      SimpleOutput.showError ("reduceRedEye: startX value less than zero");
      return p1;
    }
    if (startY < 0)
    {
      SimpleOutput.showError ("reduceRedEye: startY value less than zero");
      return p1;
    }
    if (endX > width)
    {
      SimpleOutput.showError ("reduceRedEye: endX value greater than width of picture");
      return p1;
    }
    if (endY > height)
    {
      SimpleOutput.showError ("reduceRedEye: endY value greater than height of picture");
      return p1;
    }
    
    for (int xPos = startX ; xPos < endX ; ++xPos )
    {
      for (int yPos = startY ; yPos < endY ; ++yPos )
      {
        Pixel pix = p1.getPixel (xPos, yPos);
        
        if (pix.colorDistance(targetColor) < 65)
          pix.setColor(Color.black);
      }
    }
    
    return p1;
  }
 
  
} // end of Lect914b class