001 /* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
006 *
007 * Project Info: http://www.jfree.org/jfreechart/index.html
008 *
009 * This library is free software; you can redistribute it and/or modify it
010 * under the terms of the GNU Lesser General Public License as published by
011 * the Free Software Foundation; either version 2.1 of the License, or
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
022 * USA.
023 *
024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025 * in the United States and other countries.]
026 *
027 * --------------------
028 * DrawingSupplier.java
029 * --------------------
030 * (C) Copyright 2003-2008, by Object Refinery Limited.
031 *
032 * Original Author: David Gilbert (for Object Refinery Limited);
033 * Contributor(s): -;
034 *
035 * Changes
036 * -------
037 * 16-Jan-2003 : Version 1 (DG);
038 * 17-Jan-2003 : Renamed PaintSupplier --> DrawingSupplier (DG);
039 * ------------- JFREECHART 1.0.x ---------------------------------------------
040 * 13-Jun-2007 : Added getNextOutlinePaint() method.
041 *
042 */
043
044 package org.jfree.chart.plot;
045
046 import java.awt.Paint;
047 import java.awt.Shape;
048 import java.awt.Stroke;
049
050 /**
051 * A supplier of <code>Paint</code>, <code>Stroke</code> and <code>Shape</code>
052 * objects for use by plots and renderers. By providing a central place for
053 * obtaining these items, we can ensure that duplication is avoided.
054 * <p>
055 * To support the cloning of charts, classes that implement this interface
056 * should also implement <code>PublicCloneable</code>.
057 */
058 public interface DrawingSupplier {
059
060 /**
061 * Returns the next paint in a sequence maintained by the supplier.
062 *
063 * @return The paint.
064 */
065 public Paint getNextPaint();
066
067 /**
068 * Returns the next outline paint in a sequence maintained by the supplier.
069 *
070 * @return The paint.
071 */
072 public Paint getNextOutlinePaint();
073
074 /**
075 * Returns the next fill paint in a sequence maintained by the supplier.
076 *
077 * @return The paint.
078 *
079 * @since 1.0.6
080 */
081 public Paint getNextFillPaint();
082
083 /**
084 * Returns the next <code>Stroke</code> object in a sequence maintained by
085 * the supplier.
086 *
087 * @return The stroke.
088 */
089 public Stroke getNextStroke();
090
091 /**
092 * Returns the next <code>Stroke</code> object in a sequence maintained by
093 * the supplier.
094 *
095 * @return The stroke.
096 */
097 public Stroke getNextOutlineStroke();
098
099 /**
100 * Returns the next <code>Shape</code> object in a sequence maintained by
101 * the supplier.
102 *
103 * @return The shape.
104 */
105 public Shape getNextShape();
106
107 }