    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     * BlockFrame.java
    029     * ---------------
    030     * (C) Copyright 2007, 2008, by Object Refinery Limited.
    031     *
    032     * Original Author:  David Gilbert (for Object Refinery Limited);
    033     * Contributor(s):   -;
    034     *
    035     * Changes:
    036     * --------
    037     * 16-Mar-2007 : Version 1 (DG);
    038     *
    039     */
    040
    041    package org.jfree.chart.block;
    042
    043    import java.awt.Graphics2D;
    044    import java.awt.geom.Rectangle2D;
    045
    046    import org.jfree.ui.RectangleInsets;
    047    import org.jfree.util.PublicCloneable;
    048
    049    /**
    050     * A block frame is a type of border that can be drawn around the outside of
    051     * any {@link AbstractBlock}.  Classes that implement this interface should
    052     * implement {@link PublicCloneable} OR be immutable.
    053     *
    054     * @since 1.0.5
    055     */
    056    public interface BlockFrame {
    057
    058        /**
    059         * Returns the space reserved for the border.
    060         *
    061         * @return The space (never <code>null</code>).
    062         */
    063        public RectangleInsets getInsets();
    064
    065        /**
    066         * Draws the border by filling in the reserved space (in black).
    067         *
    068         * @param g2  the graphics device.
    069         * @param area  the area.
    070         */
    071        public void draw(Graphics2D g2, Rectangle2D area);
    072
    073    }