Class Region

src/main/java/net/coobird/thumbnailator/geometry/Region.java:39–151

A representation of a region, using a Position object and a Dimension object. @author coobird @since 0.3.4

 *
 */
public final class Region {
	/**
	 * Position of the region.
	 */
	private final Position position;
	
	/**
	 * Size of the region.
	 */
	private final Size size;
	
	/**
	 * Instantiates a representation of a region from a {@link Position} and
	 * {@link Size}.
	 * 
	 * @param position		Position of the region.
	 * @param size			Size of the region.
	 * @throws NullPointerException		When the position and/or the size is
	 * 									{@code null}.
	 */
	public Region(Position position, Size size) {
		super();
		if (position == null) {
			throw new NullPointerException("Position cannot be null.");
		}
		if (size == null) {
			throw new NullPointerException("Size cannot be null.");
		}
		
		this.position = position;
		this.size = size;
	}
	
	/**
	 * Returns the position of the region.
	 * 
	 * @return 				Position of the region.
	 */
	public Position getPosition() {
		return position;
	}
	
	/**
	 * Returns the size of the region.
	 * 
	 * @return 				Size of the region.
	 */
	public Size getSize() {
		return size;
	}
	
	/**
	 * Calculates the position and size of the enclosed region, relative to the
	 * enclosing region.
	 * <p>
	 * The portions of the enclosed region which lies outside the enclosing
	 * region are ignored. Effectively, the {@link Rectangle} returned by this
	 * method is an intersection of the enclosing and enclose regions.