/* -------------------------------------------------------------------
    * Java source file for the class ColorLookupTable
    * 
    * Copyright (c), 2003, Masahiro Takatsuka.
    * All Rights Researved.
    * 
    * Original Author: Masahiro Takatsuka (masa@jbeans.net)
    * $Author: takatsukam $
    * 
   * $Date: 2004/03/03 11:53:05 $
   * 
   * $Id: ColorLookupTable.java,v 1.3 2004/03/03 11:53:05 takatsukam Exp $
   * 
   * Reference:		Document no:
   * ___				___
   * 
   * To Do:
   * ___
   * 
  ------------------------------------------------------------------- */
  
  /* --------------------------- Package ---------------------------- */
  package net.jbeans.j3d.data;
  
  /* ------------------ Import classes (packages) ------------------- *//package-summary/html">class="comment"> ------------------ Import classes (packages) ------------------- *//package-summary.html">class="comment">/* ------------------ Import classes (packages) ------------------- *//package-summary.html">class="comment"> ------------------ Import classes (packages) ------------------- */
  import java.awt.*;
  import java.io.*;
  import javax.swing.event.*;
  
  import net.jbeans.lang.*;
  
  /*====================================================================
                 Implementation of class ColorLookupTable               
  ====================================================================*/
  /***
   * generally describe ColorLookupTable in here
   * 
   * @version $Revision: 1.3 $
   * @author Masahiro Takatsuka (masa@jbeans.net)
   * @see DefaultColorLookupTable
   */
  
  public class ColorLookupTable extends DefaultColorLookupTable {
  	/* --------------------------- for bean --------------------------- */
  	private transient EventListenerList listenerList;
  	private transient ChangeEvent changeEvent;
  
  	/***
  	 * Null constructor
  	 */
  	public ColorLookupTable() {
  		super();
  		setupListeners();
  	}
  
  	/***
  	 * Construct with range=(0,1); and hsv ranges set up for rainbow color
  	 * table (from red to blue).
  	 */
  	public ColorLookupTable(int dataType, int dim, int size) {
  		super(dataType, dim, size);
  		setupListeners();
  	}
  
  	private void setupListeners() {
  		this.listenerList = new EventListenerList();
  	}
  
  	public AttributeArray makeObject() {
  		return new ColorLookupTable(getDataType(),
  									  this.data.getDimension(),
  									  getNumberOfLookups());
  	}
  
  	public void setDefaultColorLookupTable() {
  		int dim = 4;
  		int size = 256;
  		this.data.setDimension(dim);
  		setNumberOfLookups(size);
  		build();				// call DefaultColorLookupTable's build()
  
  		fireStateChanged();
  	}
  
  	public void setColorLookupTable(Color[] colors) {
  		int num = colors.length;
  		float [] rgba = new float[4];
  		int offset = 0;
  		double[] c_rgba = null;
  
  		setNumberOfLookups(num);
  		for (int i = 0; i < num; i++) {
  			colors[i].getComponents(rgba);
  			offset = 4 * i;
  			c_rgba = (double[]) this.data.getData();
  			c_rgba[offset + 0] = rgba[0];
  			c_rgba[offset + 1] = rgba[1];
  			c_rgba[offset + 2] = rgba[2];
  			c_rgba[offset + 3] = rgba[3];
 		}
 		fireStateChanged();
 	}
 
 	public void setColorLookupTable(double[][] colors) {
 		int num = colors.length;
 		int dim = colors[0].length;
 		int offset = 0;
 		double[] c_rgba = null;
 
 		setNumberOfLookups(num);
 		for (int i = 0; i < num; i++) {
 			offset = dim * i;
 			c_rgba = (double[]) this.data.getData();
 			for (int j = 0; j < dim; j++) {
 				c_rgba[offset + j] = colors[i][j];
 			}
 		}
 		fireStateChanged();
 	}
 
 	public void setColorLookupTable(double[] colors) {
 		int dim = 4;
 		int num = colors.length / dim;
 		int offset = 0;
 		double[] c_rgba = null;
 
 		setNumberOfLookups(num);
 		for (int i = 0; i < num; i++) {
 			offset = dim * i;
 			c_rgba = (double[]) this.data.getData();
 			for (int j = 0; j < dim; j++) {
 				c_rgba[offset + j] = colors[offset + j];
 			}
 		}
 		fireStateChanged();
 	}
 
 	public void setColorLookupTable(float[][] colors) {
 		int num = colors.length;
 		int dim = colors[0].length;
 		int offset = 0;
 		double[] c_rgba = null;
 
 		setNumberOfLookups(num);
 		for (int i = 0; i < num; i++) {
 			offset = dim * i;
 			c_rgba = (double[]) this.data.getData();
 			for (int j = 0; j < dim; j++) {
 				c_rgba[offset + j] = (double) colors[i][j];
 			}
 		}
 		fireStateChanged();
 	}
 
 	public void setColorLookupTable(float[] colors) {
 		int dim = 4;
 		int num = colors.length / dim;
 		int offset = 0;
 		double[] c_rgba = null;
 
 		setNumberOfLookups(num);
 		for (int i = 0; i < num; i++) {
 			offset = dim * i;
 			c_rgba = (double[]) this.data.getData();
 			for (int j = 0; j < dim; j++) {
 				c_rgba[offset + j] = (double) colors[offset + j];
 			}
 		}
 		fireStateChanged();
 	}
 
 	public void setColorLookupTable(int[][] colors) {
 		int num = colors.length;
 		int dim = colors[0].length;
 		int offset = 0;
 		double[] c_rgba = null;
 
 		setNumberOfLookups(num);
 		for (int i = 0; i < num; i++) {
 			offset = dim * i;
 			c_rgba = (double[]) this.data.getData();
 			for (int j = 0; j < dim; j++) {
 				c_rgba[offset + j] = (double) (colors[i][j] / 255);
 			}
 		}
 		fireStateChanged();
 	}
 
 	public void setColorLookupTable(int[] colors) {
 		int dim = 4;
 		int num = colors.length / dim;
 		int offset = 0;
 		double[] c_rgba = null;
 
 		setNumberOfLookups(num);
 		for (int i = 0; i < num; i++) {
 			offset = dim * i;
 			c_rgba = (double[]) this.data.getData();
 			for (int j = 0; j < dim; j++) {
 				c_rgba[offset + j] = (double) (colors[offset + j] / 255);
 			}
 		}
 		fireStateChanged();
 	}
 
     /***
      * Adds a ChangeListener to the slider.
      *
      * @param l the ChangeListener to add
      * @see #fireStateChanged
      * @see #removeChangeListener
      */
     public void addChangeListener(ChangeListener l) {
         this.listenerList.add(ChangeListener.class, l);
     }
 
     /***
      * Removes a ChangeListener from the slider.
      *
      * @param l the ChangeListener to remove
      * @see #fireStateChanged
      * @see #addChangeListener
 
      */
     public void removeChangeListener(ChangeListener l) {
         this.listenerList.remove(ChangeListener.class, l);
     }
 
     /***
      * Send a ChangeEvent, whose source is this Slider, to
      * each listener.  This method method is called each time
      * a ChangeEvent is received from the model.
      *
      * @see #addChangeListener
      * @see EventListenerList
      */
     private void fireStateChanged() {
         Object[] listeners = this.listenerList.getListenerList();
         for (int i = listeners.length - 2; i >= 0; i -= 2) {
             if (listeners[i]==ChangeListener.class) {
                 if (this.changeEvent == null) {
                     this.changeEvent = new ChangeEvent(this);
                 }
                 ((ChangeListener)listeners[i+1]).stateChanged(this.changeEvent);
             }
         }
     }
 
     /***
      * Serialization methods
      */
     private void readObject(ObjectInputStream s) throws ClassNotFoundException, IOException {
 		s.defaultReadObject();
 		setupListeners();
     }
 }