import java.awt.*;
import java.awt.font.*;
import java.awt.geom.*;
import java.text.*;

/**
 * A class that represents a picture.  This class inherits from 
 * SimplePicture and allows the student to add functionality to
 * the Picture class.  
 * 
 * Copyright Georgia Institute of Technology 2004-2005
 * @author Barbara Ericson ericson@cc.gatech.edu
 */
public class Picture extends SimplePicture 
{
  ///////////////////// constructors //////////////////////////////////
  
  /**
   * Constructor that takes no arguments 
   */
  public Picture ()
  {
    /* not needed but use it to show students the implicit call to super()
     * child constructors always call a parent constructor 
     */
    super();  
  }
  
  /**
   * Constructor that takes a file name and creates the picture 
   * @param fileName the name of the file to create the picture from
   */
  public Picture(String fileName)
  {
    // let the parent class handle this fileName
    super(fileName);
  }
  
  /**
   * Constructor that takes the width and height
   * @param width the width of the desired picture
   * @param height the height of the desired picture
   */
  public Picture(int width, int height)
  {
    // let the parent class handle this width and height
    super(width,height);
  }
  
  /**
   * Constructor that takes a picture and creates a 
   * copy of that picture
   */
  public Picture(Picture copyPicture)
  {
    // let the parent class do the copy
    super(copyPicture);
  }
  
  ////////////////////// methods ///////////////////////////////////////
  
  /**
   * Method to return a string with information about this picture.
   * @return a string with information about the picture such as fileName,
   * height and width.
   */
  public String toString()
  {
    String output = "Picture, filename " + getFileName() + 
      " height " + getHeight() 
      + " width " + getWidth();
    return output;
    
  }
  
  /* -------------------- Session 8 Methods -------------------- */
  
  // VERSION 1
  // This method mirrors Delbert T. Quimby's study, left to right.

//  public void mirror()
//  {
//    int width = this.getWidth();
//    for (int x = 0; x < width; x++)
//      for (int y = 0; y < 184; y++)
//      {
//        Pixel source = this.getPixel(x, y);
//        Pixel target = this.getPixel(width-1-x, y);
//      
//        target.setColor( source.getColor() );
//      }
//  }
  
  // VERSION 2
  // This method mirrors Delbert T. Quimby's study, right to left.

//  public void mirror()
//  {
//    int width = this.getWidth();
//    for (int x = 0; x < width; x++)
//      for (int y = 0; y < 184; y++)
//      {
//        Pixel source = this.getPixel(width-1-x, y);
//        Pixel target = this.getPixel(x, y);
//      
//        target.setColor( source.getColor() );
//      }
//  }
  
  // VERSION 3
  // This method mirrors only the bookcase from x == 300, then...

//  public void mirror()
//  {
//    int width = this.getWidth();
//    for (int x = 0; x < 100; x++)
//      for (int y = 0; y < 184; y++)
//      {
//        Pixel source = this.getPixel(width-1-x, y);
//        Pixel target = this.getPixel(x, y);
//      
//        target.setColor( source.getColor() );
//      }
//    
//    for (int x = 100; x < 125; x++)
//      for (int y = 0; y < 125; y++)
//      {
//        Pixel source = this.getPixel(width-1-x, y);
//        Pixel target = this.getPixel(x, y);
//      
//        target.setColor( source.getColor() );
//      }
//    
//    for (int x = 125; x < 160; x++)
//      for (int y = 0; y < 96; y++)
//      {
//        Pixel source = this.getPixel(width-1-x, y);
//        Pixel target = this.getPixel(x, y);
//      
//        target.setColor( source.getColor() );
//      }
//    
//    for (int x = 160; x < 200; x++)
//      for (int y = 0; y < 82; y++)
//      {
//        Pixel source = this.getPixel(width-1-x, y);
//        Pixel target = this.getPixel(x, y);
//      
//        target.setColor( source.getColor() );
//      }
//  }

  // VERSION 4
  // This method mirrors Delbert T. Quimby's study, right to left.
  // It uses a helper method to mirror rectangular regions.

  public void mirror()
  {
    mirrorRegion(   0, 100, 184 );
    mirrorRegion( 100, 125, 125 );
    mirrorRegion( 125, 160,  96 );
    mirrorRegion( 160, 200,  82 );
  }

  public void mirrorRegion(int startX, int endX, int endY)
  {
    int width = this.getWidth();
    for (int x = startX; x < endX; x++)
      for (int y = 0; y < endY; y++)
      {
        Pixel source = this.getPixel(width-1-x, y);
        Pixel target = this.getPixel(x, y);
     
        target.setColor( source.getColor() );
      }
  }
  
  // This method copies the caption from Delbert T. Quimby's study
  // into a new Picture.  It returns the picture as its answer.

  public Picture copyCaption()
  {
    Picture caption = new Picture( 115, 85 );
    Pixel sourcePixel, targetPixel;
    int xOffset = 20;
    int yOffset = 85;
    
    for (int x = 0; x < caption.getWidth(); x++)
    {
      for (int y = 0; y < caption.getHeight(); y++)
      {
        sourcePixel = this.getPixel( x + xOffset, y + yOffset );
        targetPixel = caption.getPixel( x, y );
        targetPixel.setColor( sourcePixel.getColor() );
      }
    }
    
    return caption;
  }
  
} // end of class Picture, put all new methods before this