jfreechart example source code file (PolarItemRenderer.java)

This example jfreechart source code file (PolarItemRenderer.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - jfreechart tags/keywords

awt, geometry, legenditem, legenditem, list, list, plotrenderinginfo, polaritemrenderer, polarplot, polarplot, rectangle2d, rectangle2d, util, valueaxis, xydataset

The jfreechart PolarItemRenderer.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2008, 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * ----------------------
 * PolarItemRenderer.java
 * ----------------------
 * (C) Copyright 2004-2008, by Solution Engineering, Inc. and Contributors.
 *
 * Original Author:  Daniel Bridenbecker, Solution Engineering, Inc.;
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *
 * Changes
 * -------
 * 19-Jan-2004 : Version 1, contributed by DB with minor changes by DG (DG);
 *
 */

package org.jfree.chart.renderer;

import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.util.List;

import org.jfree.chart.LegendItem;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.event.RendererChangeListener;
import org.jfree.chart.plot.PlotRenderingInfo;
import org.jfree.chart.plot.PolarPlot;
import org.jfree.data.xy.XYDataset;

/**
 * The interface for a renderer that can be used by the {@link PolarPlot} class.
 */
public interface PolarItemRenderer {

    /**
     * Plots the data for a given series.
     *
     * @param g2  the drawing surface.
     * @param dataArea  the data area.
     * @param info  collects plot rendering info.
     * @param plot  the plot.
     * @param dataset  the dataset.
     * @param seriesIndex  the series index.
     */
    public void drawSeries(Graphics2D g2,
                           Rectangle2D dataArea,
                           PlotRenderingInfo info,
                           PolarPlot plot,
                           XYDataset dataset,
                           int seriesIndex);

    /**
     * Draw the angular gridlines - the spokes.
     *
     * @param g2  the drawing surface.
     * @param plot  the plot.
     * @param ticks  the ticks.
     * @param dataArea  the data area.
     */
    public void drawAngularGridLines(Graphics2D g2,
                                     PolarPlot plot,
                                     List ticks,
                                     Rectangle2D dataArea);

    /**
     * Draw the radial gridlines - the rings.
     *
     * @param g2  the drawing surface.
     * @param plot  the plot.
     * @param radialAxis  the radial axis.
     * @param ticks  the ticks.
     * @param dataArea  the data area.
     */
    public void drawRadialGridLines(Graphics2D g2,
                                    PolarPlot plot,
                                    ValueAxis radialAxis,
                                    List ticks,
                                    Rectangle2D dataArea);

    /**
     * Return the legend for the given series.
     *
     * @param series  the series index.
     *
     * @return The legend item.
     */
    public LegendItem getLegendItem(int series);

    /**
     * Returns the plot that this renderer has been assigned to.
     *
     * @return The plot.
     */
    public PolarPlot getPlot();

    /**
     * Sets the plot that this renderer is assigned to.
     * <P>
     * This method will be called by the plot class...you do not need to call
     * it yourself.
     *
     * @param plot  the plot.
     */
    public void setPlot(PolarPlot plot);

    /**
     * Adds a change listener.
     *
     * @param listener  the listener.
     */
    public void addChangeListener(RendererChangeListener listener);

    /**
     * Removes a change listener.
     *
     * @param listener  the listener.
     */
    public void removeChangeListener(RendererChangeListener listener);


}