package pl.wroc.pwr.image.model;

import pl.wroc.pwr.image.ILabImage;
import pl.wroc.pwr.imagechannel.IImageChannel;
import pl.wroc.pwr.imagechannel.IPixel;
import pl.wroc.pwr.imagechannel.model.ImageChannel;

/**
 * Lab space image
 *
 * @author Mariusz Paradowski
 */
public class LabImage extends MultiChannelImage implements ILabImage {
	/**
	 *
	 */
	private static final long serialVersionUID = -1119924849403833820L;

	public final static int CHANNEL_L = 0;
	public final static int CHANNEL_a = 1;
	public final static int CHANNEL_b = 2;

	public LabImage( int sizeX, int sizeY ) {
		super( new IImageChannel[ ]{
				new ImageChannel( sizeX, sizeY, ILabImage.MIN_L, ILabImage.MAX_L ),
				new ImageChannel( sizeX, sizeY, ILabImage.MIN_a, ILabImage.MAX_a ),
				new ImageChannel( sizeX, sizeY, ILabImage.MIN_b, ILabImage.MAX_b ) } );
	}

	public LabImage(int[] size) {
		this( size[ IPixel.X ], size[ IPixel.Y ] );
	}

	public IImageChannel getLChannel() {
		return this.getChannel( LabImage.CHANNEL_L );
	}

	public IImageChannel getaChannel() {
		return this.getChannel( LabImage.CHANNEL_a );
	}

	public IImageChannel getbChannel() {
		return this.getChannel( LabImage.CHANNEL_b );
	}

	public void setLChannel( IImageChannel channel ) {
		this.setChannel( channel, LabImage.CHANNEL_L );
	}

	public void setaChannel( IImageChannel channel ) {
		this.setChannel( channel, LabImage.CHANNEL_a );
	}

	public void setbChannel( IImageChannel channel ) {
		this.setChannel( channel, LabImage.CHANNEL_b );
	}

	@Override
	public String getChannelName(int number) {
		switch (number) {
			case LabImage.CHANNEL_L: return "L";
			case LabImage.CHANNEL_a: return "a";
			case LabImage.CHANNEL_b: return "b";
			default: return null;
		}
	}
}