PointConstrainer.java

/*
 * @(#)PointConstrainer.java 5.1
 *
 */

package CH.ifa.draw.framework;

import java.awt.Point;

/**
 * Interface to constrain a Point. This can be used to implement
 * different kinds of grids.
 * <hr>
 * <b>Design Patterns</b><P>
 * <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
 * <b><a href=../pattlets/sld034.htm>Strategy</a></b><br>
 * DrawingView is the StrategyContext.<br>
 *
 * @see DrawingView
 */


public interface PointConstrainer {
	/**
	 * Constrains the given point.
	 * @return constrained point.
	 */
	public Point constrainPoint(Point p);

	/**
	 * Gets the x offset to move an object.
	 */
	public int getStepX();

	/**
	 * Gets the y offset to move an object.
	 */
	public int getStepY();

}