content: /* ===========================================================
   * 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);
  
  
  }
  