mirror of https://github.com/octoleo/plantuml.git
86 lines
2.6 KiB
Java
86 lines
2.6 KiB
Java
/*
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* Copyright 2003-2004, Franz-Josef Elmer, All rights reserved
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details
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* (http://www.gnu.org/copyleft/lesser.html).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package jcckit.graphic;
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import java.util.Vector;
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/**
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* A polygon or polyline.
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*
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* @author Franz-Josef Elmer
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*/
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public class Polygon extends BasicGraphicalElement {
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private final Vector _points = new Vector();
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private final boolean _closed;
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/**
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* Creates an instance of the specified graphic attributes.
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* @param closed <tt>true</tt> if this polygon is closed.
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*/
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public Polygon(GraphicAttributes attributes, boolean closed) {
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super(attributes);
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_closed = closed;
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}
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/** Returns <tt>true</tt> if this polygon is closed. */
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public boolean isClosed() {
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return _closed;
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}
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/** Returns the number points. */
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public int getNumberOfPoints() {
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return _points.size();
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}
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/** Returns the point for the specified index. */
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public GraphPoint getPoint(int index) {
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return (GraphPoint) _points.elementAt(index);
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}
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/** Adds a new point to the end of the list of points. */
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public void addPoint(GraphPoint point) {
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_points.addElement(point);
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}
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/** Removes all points. */
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public void removeAllPoints() {
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_points.removeAllElements();
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}
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/** Replaces the point at the specified index by a new one. */
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public void replacePointAt(int index, GraphPoint point) {
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_points.setElementAt(point, index);
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}
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/**
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* Renders this line with the specified {@link Renderer}.
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* @param renderer An instance of {@link PolygonRenderer}.
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* @throws IllegalArgumentException if <tt>renderer</tt> is not
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* an instance of <tt>PolygonRenderer</tt>.
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*/
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public void renderWith(Renderer renderer) {
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if (renderer instanceof PolygonRenderer) {
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((PolygonRenderer) renderer).render(this);
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} else {
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throw new IllegalArgumentException(renderer
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+ " does not implements PolygonRenderer.");
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}
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}
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}
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