Source for org.jfree.chart.entity.PieSectionEntity

   1: /* ===========================================================
   2:  * JFreeChart : a free chart library for the Java(tm) platform
   3:  * ===========================================================
   4:  *
   5:  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
   6:  *
   7:  * Project Info:  http://www.jfree.org/jfreechart/index.html
   8:  *
   9:  * This library is free software; you can redistribute it and/or modify it 
  10:  * under the terms of the GNU Lesser General Public License as published by 
  11:  * the Free Software Foundation; either version 2.1 of the License, or 
  12:  * (at your option) any later version.
  13:  *
  14:  * This library is distributed in the hope that it will be useful, but 
  15:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
  16:  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
  17:  * License for more details.
  18:  *
  19:  * You should have received a copy of the GNU Lesser General Public
  20:  * License along with this library; if not, write to the Free Software
  21:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
  22:  * USA.  
  23:  *
  24:  * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
  25:  * in the United States and other countries.]
  26:  *
  27:  * ---------------------
  28:  * PieSectionEntity.java
  29:  * ---------------------
  30:  * (C) Copyright 2002-2005, by Object Refinery Limited.
  31:  *
  32:  * Original Author:  David Gilbert (for Object Refinery Limited);
  33:  * Contributor(s):   Richard Atkinson;
  34:  *                   Christian W. Zuckschwerdt;
  35:  *                   
  36:  * $Id: PieSectionEntity.java,v 1.5.2.1 2005/10/25 20:41:59 mungady Exp $
  37:  *
  38:  * Changes:
  39:  * --------
  40:  * 23-May-2002 : Version 1 (DG);
  41:  * 12-Jun-2002 : Added Javadoc comments (DG);
  42:  * 26-Jun-2002 : Added method to generate AREA tag for image map 
  43:  *               generation (DG);
  44:  * 05-Aug-2002 : Added new constructor to populate URLText
  45:  *               Moved getImageMapAreaTag() to ChartEntity (superclass) (RA);
  46:  * 03-Oct-2002 : Fixed errors reported by Checkstyle (DG);
  47:  * 07-Mar-2003 : Added pie index attribute, since the PiePlot class can create
  48:  *               multiple pie plots within one chart.  Also renamed 'category' 
  49:  *               --> 'sectionKey' and changed the class from Object --> 
  50:  *               Comparable (DG);
  51:  * 30-Jul-2003 : Added PieDataset reference (CZ);
  52:  * 11-Jan-2005 : Removed deprecated code in preparation for 1.0.0 release (DG);
  53:  *
  54:  */
  55: 
  56: package org.jfree.chart.entity;
  57: 
  58: import java.awt.Shape;
  59: import java.io.Serializable;
  60: 
  61: import org.jfree.data.general.PieDataset;
  62: 
  63: /**
  64:  * A chart entity that represents one section within a pie plot.
  65:  */
  66: public class PieSectionEntity extends ChartEntity
  67:                               implements Serializable {
  68: 
  69:     /** For serialization. */
  70:     private static final long serialVersionUID = 9199892576531984162L;
  71:     
  72:     /** The dataset. */
  73:     private PieDataset dataset;
  74:     
  75:     /** The pie index. */
  76:     private int pieIndex;
  77: 
  78:     /** The section index. */
  79:     private int sectionIndex;
  80: 
  81:     /** The section key. */
  82:     private Comparable sectionKey;
  83: 
  84:     /**
  85:      * Creates a new pie section entity.
  86:      *
  87:      * @param area  the area.
  88:      * @param dataset  the pie dataset.
  89:      * @param pieIndex  the pie index (zero-based).
  90:      * @param sectionIndex  the section index (zero-based).
  91:      * @param sectionKey  the section key.
  92:      * @param toolTipText  the tool tip text.
  93:      * @param urlText  the URL text for HTML image maps.
  94:      */
  95:     public PieSectionEntity(Shape area, 
  96:                             PieDataset dataset,
  97:                             int pieIndex, int sectionIndex, 
  98:                             Comparable sectionKey,
  99:                             String toolTipText, String urlText) {
 100: 
 101:         super(area, toolTipText, urlText);
 102:         this.dataset = dataset;
 103:         this.pieIndex = pieIndex;
 104:         this.sectionIndex = sectionIndex;
 105:         this.sectionKey = sectionKey;
 106: 
 107:     }
 108: 
 109:     /**
 110:      * Returns the datset this entity refers to.
 111:      *
 112:      * @return The dataset.
 113:      */
 114:     public PieDataset getDataset() {
 115:         return this.dataset;
 116:     }
 117: 
 118:     /**
 119:      * Sets the datset this entity refers to.
 120:      *
 121:      * @param dataset  the dataset.
 122:      */
 123:     public void setDataset(PieDataset dataset) {
 124:         this.dataset = dataset;
 125:     }
 126: 
 127:     /**
 128:      * Returns the pie index.  For a regular pie chart, the section index is 0. 
 129:      * For a pie chart containing multiple pie plots, the pie index is the row 
 130:      * or column index from which the pie data is extracted.
 131:      *
 132:      * @return The pie index.
 133:      */
 134:     public int getPieIndex() {
 135:         return this.pieIndex;
 136:     }
 137: 
 138:     /**
 139:      * Sets the pie index.
 140:      *
 141:      * @param index  the new index value.
 142:      */
 143:     public void setPieIndex(int index) {
 144:         this.pieIndex = index;
 145:     }
 146: 
 147:     /**
 148:      * Returns the section index.
 149:      *
 150:      * @return The section index.
 151:      */
 152:     public int getSectionIndex() {
 153:         return this.sectionIndex;
 154:     }
 155: 
 156:     /**
 157:      * Sets the section index.
 158:      *
 159:      * @param index  the section index.
 160:      */
 161:     public void setSectionIndex(int index) {
 162:         this.sectionIndex = index;
 163:     }
 164: 
 165:     /**
 166:      * Returns the section key.
 167:      *
 168:      * @return The section key.
 169:      */
 170:     public Comparable getSectionKey() {
 171:         return this.sectionKey;
 172:     }
 173: 
 174:     /**
 175:      * Sets the section key.
 176:      *
 177:      * @param key  the section key.
 178:      */
 179:     public void setSectionKey(Comparable key) {
 180:         this.sectionKey = key;
 181:     }
 182: 
 183:     /**
 184:      * Returns a string representing the entity.
 185:      *
 186:      * @return A string representing the entity.
 187:      */
 188:     public String toString() {
 189:         return "PieSection: " + this.pieIndex + ", " + this.sectionIndex + "("
 190:                               + this.sectionKey.toString() + ")";
 191:     }
 192: 
 193: }