/**
 * 
 */
package cortexrules;

import java.awt.geom.GeneralPath;

/**
 * add a new shape to a list of generalPaths
 * 
 * @author John H. Krantz Ph.D
 * @version 0.1
 *
 */
public class AddShape {
	// private routine to add a shape to a list
	public GeneralPath [] addShape(GeneralPath [] shapes,
			GeneralPath curShape){
		if (curShape != null){  // only add if real shape
			if (shapes == null){
				shapes= new GeneralPath [1];
				shapes[0] = curShape;
			}
			else {
				GeneralPath hold [] = new GeneralPath[shapes.length];
				// put current shapes in hold variable
				for (int i = 0; i < shapes.length; i ++)
					hold[i] = shapes[i];
				
				shapes = new GeneralPath[hold.length+1]; // increase
				// length of array
				
				// return shapes
				for (int i = 0; i < hold.length; i ++)
					shapes[i] = hold[i];
				
				shapes[shapes.length-1] = curShape;  // add new shape
			}
		}
		
		return shapes;
	}
}