displaythreesynchronizedimages.java

Fuzzy C-means algorithm written in Java

/*
 * Created on May 22, 2005
 * @author Rafael Santos ([e-mail])
 * 
 * Part of the Java Advanced Imaging Stuff site
 * (http://www.lac.inpe.br/~rafael.santos/Java/JAI)
 * 
 * STATUS: Complete.
 * 
 * Redistribution and usage conditions must be done under the
 * Creative Commons license:
 * English: http://creativecommons.org/licenses/by-nc-sa/2.0/br/deed.en
 * Portuguese: http://creativecommons.org/licenses/by-nc-sa/2.0/br/deed.pt
 * More information on design and applications are on the projects' page
 * (http://www.lac.inpe.br/~rafael.santos/Java/JAI).
 */

import java.awt.GridLayout;
import java.awt.event.AdjustmentEvent;
import java.awt.image.RenderedImage;
import javax.swing.JScrollPane;

/**
 * This class represents a Panel which contains three instances of
 * DisplayJAIWithPixelInfo.
 * The scrolling bars of all images are synchronized so scrolling one image
 * will automatically scroll the others.
 */
public class DisplayThreeSynchronizedImages extends DisplayTwoSynchronizedImages
  {
  
  /** The DisplayJAIWithPixelInfor for the third image. */
  protected DisplayJAIWithPixelInfo dj3;
  /** The JScrollPane which will contain the third image */
  protected JScrollPane jsp3;

 /**
  * Constructs an instance of this class, setting the components' layout,
  * creating three instances of DisplayJAI for the three images and creating/
  * registering event handlers for the scroll bars.
  * @param im1 the first image (left side)
  * @param im2 the second image (middle)
  * @param im3 the third image (right side)
  */
  public DisplayThreeSynchronizedImages(RenderedImage im1,RenderedImage im2,RenderedImage im3)
    {
    super(im1,im2);
    setLayout(new GridLayout(1,3));
    // Instance of DisplayJAIWithPixelInfo for the third image.
    dj3 = new DisplayJAIWithPixelInfo(im3);
    jsp3 = new JScrollPane(dj3); // JScrollPane for that instance.
    add(jsp3);
    // Retrieve the scroll bars of the images and registers adjustment
    // listeners to them.
    // Horizontal scroll bar of the third image.
    jsp3.getHorizontalScrollBar().addAdjustmentListener(this);
    // Vertical scroll bar of the third image.
    jsp3.getVerticalScrollBar().addAdjustmentListener(this);
    } 
  
 /**
  * This method changes the image displayed in the right DisplayJAI instance.
  * @param newImage the new image
  */
  public void setImage3(RenderedImage newimage)
    {
    dj3.set(newimage);
    repaint();
    }    

 /**
  * This method returns the third image.
  * @return the third image.
  */
  public RenderedImage getImage3()
    {
    return dj3.getSource();
    }

 /**
  * This method returns the third DisplayJAI component.
  * @return the third DisplayJAI component.
  */
  public DisplayJAIWithPixelInfo getDisplayJAIComponent3()
    {
    return dj3;
    }

 /**
  * This method will be called when any of the scroll bars of the instances of
  * DisplayJAI are changed. The method will adjust the scroll bar of the other
  * DisplayJAI as needed.
  * @param e the AdjustmentEvent that ocurred (meaning that one of the scroll
  *        bars position has changed.
  */
  public void adjustmentValueChanged(AdjustmentEvent e)
    {
    // If the horizontal bar of the first image was changed...
    if (e.getSource() == jsp1.getHorizontalScrollBar())
      {
      // We change the position of the horizontal bar of the 2nd and 3rd images.
      jsp2.getHorizontalScrollBar().setValue(e.getValue());
      jsp3.getHorizontalScrollBar().setValue(e.getValue());
      } 
    // If the vertical bar of the first image was changed...
    if (e.getSource() == jsp1.getVerticalScrollBar())
      {
      // We change the position of the vertical bar of the 2nd and 3rd images.
      jsp2.getVerticalScrollBar().setValue(e.getValue());
      jsp3.getVerticalScrollBar().setValue(e.getValue());
      } 
    // If the horizontal bar of the second image was changed...
    if (e.getSource() == jsp2.getHorizontalScrollBar())
      {
      // We change the position of the horizontal bar of the 1st and 3rd images.
      jsp1.getHorizontalScrollBar().setValue(e.getValue());
      jsp3.getHorizontalScrollBar().setValue(e.getValue());
      }
    // If the vertical bar of the second image was changed...
    if (e.getSource() == jsp2.getVerticalScrollBar())
      {
      // We change the position of the vertical bar of the 1st and 3rd images.
      jsp1.getVerticalScrollBar().setValue(e.getValue());
      jsp3.getVerticalScrollBar().setValue(e.getValue());
      }
    // If the horizontal bar of the third image was changed...
    if (e.getSource() == jsp3.getHorizontalScrollBar())
      {
      // We change the position of the horizontal bar of the 1st and 2nd images.
      jsp1.getHorizontalScrollBar().setValue(e.getValue());
      jsp2.getHorizontalScrollBar().setValue(e.getValue());
      }
    // If the vertical bar of the third image was changed...
    if (e.getSource() == jsp3.getVerticalScrollBar())
      {
      // We change the position of the vertical bar of the 1st and 2nd images.
      jsp1.getVerticalScrollBar().setValue(e.getValue());
      jsp2.getVerticalScrollBar().setValue(e.getValue());
      }
    } // end adjustmentValueChanged

  } // end class