xyitemrendererstate.java

来自「JfreeChart 常用图表例子」· Java 代码 · 共 72 行

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this library; if not, write to the Free Software Foundation, 
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 *
 * ------------------------
 * XYItemRendererState.java
 * ------------------------
 * (C) Copyright 2003, 2004, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: XYItemRendererState.java,v 1.2 2005/03/29 12:56:55 mungady Exp $
 *
 * Changes:
 * --------
 * 07-Oct-2003 : Version 1 (DG);
 * 27-Jan-2004 : Added workingLine attribute (DG);
 * 
 */

package org.jfree.chart.renderer.xy;

import java.awt.geom.Line2D;

import org.jfree.chart.plot.PlotRenderingInfo;
import org.jfree.chart.renderer.RendererState;

/**
 * The state for an {@link XYItemRenderer}.
 */
public class XYItemRendererState extends RendererState {

    /** 
     * A line object that the renderer can reuse to save instantiating a lot 
     * of objects. 
     */
    public Line2D workingLine;
    
    /**
     * Creates a new state.
     * 
     * @param info  the plot rendering info.
     */
    public XYItemRendererState(PlotRenderingInfo info) {
        super(info);
        this.workingLine = new Line2D.Double();
    }
    
}