displayfoursynchronizedimages.java

Fuzzy C-means algorithm written in Java

/*
 * Created on Jun 24, 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.event.AdjustmentListener;
import java.awt.image.RenderedImage;
import javax.swing.JScrollPane;

/**
 * This class represents a JPanel which contains four instances of DisplayJAIWithPixelInfo.
 * The scrolling bars of all images are synchronized so scrolling one image
 * will automatically scroll the others.
 * I am not doing a DisplayNSynchronizedImages component since for each
 * case the layout will be different.
 */
public class DisplayFourSynchronizedImages extends DisplayThreeSynchronizedImages 
                                           implements AdjustmentListener
  {
  /** The DisplayJAIWithPixelInfo for the fourth image. */
  protected DisplayJAIWithPixelInfo dj4;
  /** The JScrollPane which will contain the fourth image */
  protected JScrollPane jsp4;

 /**
  * Constructs an instance of this class, setting the components' layout,
  * creating four instances of DisplayJAI for the four images and creating/
  * registering event handlers for the scroll bars.
  * @param im1 the first image (top left side)
  * @param im2 the second image (top right side)
  * @param im3 the third image (bottom left side)
  * @param im4 the third image (bottom right side)
  */
  public DisplayFourSynchronizedImages(RenderedImage im1,RenderedImage im2,
                                       RenderedImage im3,RenderedImage im4)
    {
    super(im1,im2,im3);
    // Layout for this will be different: 2x2.
    setLayout(new GridLayout(2,2));
    // Instance of DisplayJAIWithPixelInfo for the fourth image.
    dj4 = new DisplayJAIWithPixelInfo(im4);
    jsp4 = new JScrollPane(dj4); // JScrollPane for that instance.
    add(jsp4);
    // Retrieve the scroll bars of the images and registers adjustment
    // listeners to them.
    // Horizontal scroll bar of the fourth image.
    jsp4.getHorizontalScrollBar().addAdjustmentListener(this);
    // Vertical scroll bar of the fourth image.
    jsp4.getVerticalScrollBar().addAdjustmentListener(this);
    }

 /**
  * This method changes the image displayed in the bottom right DisplayJAI
  * instance.
  * @param newImage the new image
  */
  public void setImage4(RenderedImage newimage)
    {
    dj4.set(newimage);
    repaint();
    }

 /**
  * This method returns the fourth image.
  * @return the fourth image.
  */
  public RenderedImage getImage4()
    {
    return dj4.getSource();
    }

 /**
  * This method returns the fourth DisplayJAI component.
  * @return the fourth DisplayJAI component.
  */
  public DisplayJAIWithPixelInfo getDisplayJAIComponent4()
    {
    return dj4;
    }

 /**
  * 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, 3rd and 4th images.
      jsp2.getHorizontalScrollBar().setValue(e.getValue());
      jsp3.getHorizontalScrollBar().setValue(e.getValue());
      jsp4.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, 3rd and 4th images.
      jsp2.getVerticalScrollBar().setValue(e.getValue());
      jsp3.getVerticalScrollBar().setValue(e.getValue());
      jsp4.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, 3rd and 4th images.
     jsp1.getHorizontalScrollBar().setValue(e.getValue());
     jsp3.getHorizontalScrollBar().setValue(e.getValue());
     jsp4.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, 3rd and 4th images.
     jsp1.getVerticalScrollBar().setValue(e.getValue());
     jsp3.getVerticalScrollBar().setValue(e.getValue());
     jsp4.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, 2nd and 4th images.
     jsp1.getHorizontalScrollBar().setValue(e.getValue());
     jsp2.getHorizontalScrollBar().setValue(e.getValue());
     jsp4.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, 2nd and 4th images.
     jsp1.getVerticalScrollBar().setValue(e.getValue());
     jsp2.getVerticalScrollBar().setValue(e.getValue());
     jsp4.getVerticalScrollBar().setValue(e.getValue());
     }
   // If the horizontal bar of the fourth image was changed...
   if (e.getSource() == jsp4.getHorizontalScrollBar())
     {
     // We change the position of the horizontal bar of the 1st, 2nd and 3rd images.
     jsp1.getHorizontalScrollBar().setValue(e.getValue());
     jsp2.getHorizontalScrollBar().setValue(e.getValue());
     jsp3.getHorizontalScrollBar().setValue(e.getValue());
     }
   // If the vertical bar of the fourth image was changed...
   if (e.getSource() == jsp4.getVerticalScrollBar())
     {
     // We change the position of the vertical bar of the 1st, 2nd and 3rd images.
     jsp1.getVerticalScrollBar().setValue(e.getValue());
     jsp2.getVerticalScrollBar().setValue(e.getValue());
     jsp3.getVerticalScrollBar().setValue(e.getValue());
     }
    }
  
  }