Stroke interface allows a
* {@link Graphics2D} object to obtain a {@link Shape} that is the
* decorated outline, or stylistic representation of the outline,
* of the specified Shape.
* Stroking a Shape is like tracing its outline with a
* marking pen of the appropriate size and shape.
* The area where the pen would place ink is the area enclosed by the
* outline Shape.
*
* The methods of the Graphics2D interface that use the
* outline Shape returned by a Stroke object
* include draw and any other methods that are
* implemented in terms of that method, such as
* drawLine, drawRect,
* drawRoundRect, drawOval,
* drawArc, drawPolyline,
* and drawPolygon.
*
* The objects of the classes implementing Stroke
* must be read-only because Graphics2D does not
* clone these objects either when they are set as an attribute
* with the setStroke method or when the
* Graphics2D object is itself cloned.
* If a Stroke object is modified after it is set in
* the Graphics2D context then the behavior
* of subsequent rendering would be undefined.
* @see BasicStroke
* @see Graphics2D#setStroke
*/
public interface Stroke {
/**
* Returns an outline Shape which encloses the area that
* should be painted when the Shape is stroked according
* to the rules defined by the
* object implementing the Stroke interface.
* @param p a Shape to be stroked
* @return the stroked outline Shape.
*/
Shape createStrokedShape (Shape p);
}