📄 standardpietooltipgenerator.html
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<HTML><BODY BGCOLOR="white"><PRE><FONT color="green">001</FONT> /* ===========================================================<a name="line.1"></a><FONT color="green">002</FONT> * JFreeChart : a free chart library for the Java(tm) platform<a name="line.2"></a><FONT color="green">003</FONT> * ===========================================================<a name="line.3"></a><FONT color="green">004</FONT> *<a name="line.4"></a><FONT color="green">005</FONT> * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.<a name="line.5"></a><FONT color="green">006</FONT> *<a name="line.6"></a><FONT color="green">007</FONT> * Project Info: http://www.jfree.org/jfreechart/index.html<a name="line.7"></a><FONT color="green">008</FONT> *<a name="line.8"></a><FONT color="green">009</FONT> * This library is free software; you can redistribute it and/or modify it <a name="line.9"></a><FONT color="green">010</FONT> * under the terms of the GNU Lesser General Public License as published by <a name="line.10"></a><FONT color="green">011</FONT> * the Free Software Foundation; either version 2.1 of the License, or <a name="line.11"></a><FONT color="green">012</FONT> * (at your option) any later version.<a name="line.12"></a><FONT color="green">013</FONT> *<a name="line.13"></a><FONT color="green">014</FONT> * This library is distributed in the hope that it will be useful, but <a name="line.14"></a><FONT color="green">015</FONT> * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY <a name="line.15"></a><FONT color="green">016</FONT> * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public <a name="line.16"></a><FONT color="green">017</FONT> * License for more details.<a name="line.17"></a><FONT color="green">018</FONT> *<a name="line.18"></a><FONT color="green">019</FONT> * You should have received a copy of the GNU Lesser General Public<a name="line.19"></a><FONT color="green">020</FONT> * License along with this library; if not, write to the Free Software<a name="line.20"></a><FONT color="green">021</FONT> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, <a name="line.21"></a><FONT color="green">022</FONT> * USA. <a name="line.22"></a><FONT color="green">023</FONT> *<a name="line.23"></a><FONT color="green">024</FONT> * [Java is a trademark or registered trademark of Sun Microsystems, Inc. <a name="line.24"></a><FONT color="green">025</FONT> * in the United States and other countries.]<a name="line.25"></a><FONT color="green">026</FONT> *<a name="line.26"></a><FONT color="green">027</FONT> * --------------------------------<a name="line.27"></a><FONT color="green">028</FONT> * StandardPieToolTipGenerator.java<a name="line.28"></a><FONT color="green">029</FONT> * --------------------------------<a name="line.29"></a><FONT color="green">030</FONT> * (C) Copyright 2001-2006, by Object Refinery Limited.<a name="line.30"></a><FONT color="green">031</FONT> *<a name="line.31"></a><FONT color="green">032</FONT> * Original Author: David Gilbert (for Object Refinery Limited);<a name="line.32"></a><FONT color="green">033</FONT> * Contributor(s): Richard Atkinson;<a name="line.33"></a><FONT color="green">034</FONT> * Andreas Schroeder;<a name="line.34"></a><FONT color="green">035</FONT> *<a name="line.35"></a><FONT color="green">036</FONT> * $Id: StandardPieToolTipGenerator.java,v 1.1.2.3 2006/05/03 10:46:36 mungady Exp $<a name="line.36"></a><FONT color="green">037</FONT> *<a name="line.37"></a><FONT color="green">038</FONT> * Changes<a name="line.38"></a><FONT color="green">039</FONT> * -------<a name="line.39"></a><FONT color="green">040</FONT> * 13-Dec-2001 : Version 1 (DG);<a name="line.40"></a><FONT color="green">041</FONT> * 16-Jan-2002 : Completed Javadocs (DG);<a name="line.41"></a><FONT color="green">042</FONT> * 29-Aug-2002 : Changed to format numbers using default locale (RA);<a name="line.42"></a><FONT color="green">043</FONT> * 26-Sep-2002 : Fixed errors reported by Checkstyle (DG);<a name="line.43"></a><FONT color="green">044</FONT> * 30-Oct-2002 : Changed PieToolTipGenerator interface (DG);<a name="line.44"></a><FONT color="green">045</FONT> * 21-Mar-2003 : Implemented Serializable (DG);<a name="line.45"></a><FONT color="green">046</FONT> * 13-Aug-2003 : Implemented Cloneable (DG);<a name="line.46"></a><FONT color="green">047</FONT> * 19-Aug-2003 : Renamed StandardPieToolTipGenerator --> <a name="line.47"></a><FONT color="green">048</FONT> * StandardPieItemLabelGenerator (DG);<a name="line.48"></a><FONT color="green">049</FONT> * 10-Mar-2004 : Modified to use MessageFormat class (DG);<a name="line.49"></a><FONT color="green">050</FONT> * 31-Mar-2004 : Added javadocs for the MessageFormat usage (AS);<a name="line.50"></a><FONT color="green">051</FONT> * 15-Apr-2004 : Split PieItemLabelGenerator interface into <a name="line.51"></a><FONT color="green">052</FONT> * PieSectionLabelGenerator and PieToolTipGenerator (DG);<a name="line.52"></a><FONT color="green">053</FONT> * 25-Nov-2004 : Moved some code into abstract super class (DG);<a name="line.53"></a><FONT color="green">054</FONT> * 29-Jul-2005 : Removed implementation of PieSectionLabelGenerator <a name="line.54"></a><FONT color="green">055</FONT> * interface (DG);<a name="line.55"></a><FONT color="green">056</FONT> *<a name="line.56"></a><FONT color="green">057</FONT> */<a name="line.57"></a><FONT color="green">058</FONT> <a name="line.58"></a><FONT color="green">059</FONT> package org.jfree.chart.labels;<a name="line.59"></a><FONT color="green">060</FONT> <a name="line.60"></a><FONT color="green">061</FONT> import java.io.Serializable;<a name="line.61"></a><FONT color="green">062</FONT> import java.text.NumberFormat;<a name="line.62"></a><FONT color="green">063</FONT> <a name="line.63"></a><FONT color="green">064</FONT> import org.jfree.data.general.PieDataset;<a name="line.64"></a><FONT color="green">065</FONT> import org.jfree.util.PublicCloneable;<a name="line.65"></a><FONT color="green">066</FONT> <a name="line.66"></a><FONT color="green">067</FONT> /**<a name="line.67"></a><FONT color="green">068</FONT> * A standard item label generator for plots that use data from a <a name="line.68"></a><FONT color="green">069</FONT> * {@link PieDataset}.<a name="line.69"></a><FONT color="green">070</FONT> * <p><a name="line.70"></a><FONT color="green">071</FONT> * For the label format, use {0} where the pie section key should be inserted,<a name="line.71"></a><FONT color="green">072</FONT> * {1} for the absolute section value and {2} for the percent amount of the pie<a name="line.72"></a><FONT color="green">073</FONT> * section, e.g. <code>"{0} = {1} ({2})"</code> will display as <a name="line.73"></a><FONT color="green">074</FONT> * <code>apple = 120 (5%)</code>.<a name="line.74"></a><FONT color="green">075</FONT> */<a name="line.75"></a><FONT color="green">076</FONT> public class StandardPieToolTipGenerator extends AbstractPieItemLabelGenerator<a name="line.76"></a><FONT color="green">077</FONT> implements PieToolTipGenerator,<a name="line.77"></a><FONT color="green">078</FONT> Cloneable, <a name="line.78"></a><FONT color="green">079</FONT> PublicCloneable, <a name="line.79"></a><FONT color="green">080</FONT> Serializable {<a name="line.80"></a><FONT color="green">081</FONT> <a name="line.81"></a><FONT color="green">082</FONT> /** For serialization. */<a name="line.82"></a><FONT color="green">083</FONT> private static final long serialVersionUID = 2995304200445733779L;<a name="line.83"></a><FONT color="green">084</FONT> <a name="line.84"></a><FONT color="green">085</FONT> /** The default tooltip format. */<a name="line.85"></a><FONT color="green">086</FONT> public static final String DEFAULT_TOOLTIP_FORMAT = "{0}: ({1}, {2})";<a name="line.86"></a><FONT color="green">087</FONT> <a name="line.87"></a><FONT color="green">088</FONT> /** The default section label format. */<a name="line.88"></a><FONT color="green">089</FONT> public static final String DEFAULT_SECTION_LABEL_FORMAT = "{0} = {1}";<a name="line.89"></a><FONT color="green">090</FONT> <a name="line.90"></a><FONT color="green">091</FONT> /**<a name="line.91"></a><FONT color="green">092</FONT> * Creates an item label generator using default number formatters.<a name="line.92"></a><FONT color="green">093</FONT> */<a name="line.93"></a><FONT color="green">094</FONT> public StandardPieToolTipGenerator() {<a name="line.94"></a><FONT color="green">095</FONT> this(DEFAULT_SECTION_LABEL_FORMAT, NumberFormat.getNumberInstance(), <a name="line.95"></a><FONT color="green">096</FONT> NumberFormat.getPercentInstance());<a name="line.96"></a><FONT color="green">097</FONT> }<a name="line.97"></a><FONT color="green">098</FONT> <a name="line.98"></a><FONT color="green">099</FONT> /**<a name="line.99"></a><FONT color="green">100</FONT> * Creates an item label generator.<a name="line.100"></a><FONT color="green">101</FONT> * <a name="line.101"></a><FONT color="green">102</FONT> * @param labelFormat the label format.<a name="line.102"></a><FONT color="green">103</FONT> */<a name="line.103"></a><FONT color="green">104</FONT> public StandardPieToolTipGenerator(String labelFormat) {<a name="line.104"></a><FONT color="green">105</FONT> this(labelFormat, NumberFormat.getNumberInstance(), <a name="line.105"></a><FONT color="green">106</FONT> NumberFormat.getPercentInstance());<a name="line.106"></a><FONT color="green">107</FONT> }<a name="line.107"></a><FONT color="green">108</FONT> <a name="line.108"></a><FONT color="green">109</FONT> /**<a name="line.109"></a><FONT color="green">110</FONT> * Creates an item label generator using the specified number formatters.<a name="line.110"></a><FONT color="green">111</FONT> *<a name="line.111"></a><FONT color="green">112</FONT> * @param labelFormat the label format string (<code>null</code> not <a name="line.112"></a><FONT color="green">113</FONT> * permitted).<a name="line.113"></a><FONT color="green">114</FONT> * @param numberFormat the format object for the values (<code>null</code><a name="line.114"></a><FONT color="green">115</FONT> * not permitted).<a name="line.115"></a><FONT color="green">116</FONT> * @param percentFormat the format object for the percentages <a name="line.116"></a><FONT color="green">117</FONT> * (<code>null</code> not permitted).<a name="line.117"></a><FONT color="green">118</FONT> */<a name="line.118"></a><FONT color="green">119</FONT> public StandardPieToolTipGenerator(String labelFormat, <a name="line.119"></a><FONT color="green">120</FONT> NumberFormat numberFormat, NumberFormat percentFormat) {<a name="line.120"></a><FONT color="green">121</FONT> super(labelFormat, numberFormat, percentFormat);<a name="line.121"></a><FONT color="green">122</FONT> }<a name="line.122"></a><FONT color="green">123</FONT> <a name="line.123"></a><FONT color="green">124</FONT> /**<a name="line.124"></a><FONT color="green">125</FONT> * Generates a tool tip text item for one section in a pie chart.<a name="line.125"></a><FONT color="green">126</FONT> *<a name="line.126"></a><FONT color="green">127</FONT> * @param dataset the dataset (<code>null</code> not permitted).<a name="line.127"></a><FONT color="green">128</FONT> * @param key the section key (<code>null</code> not permitted).<a name="line.128"></a><FONT color="green">129</FONT> *<a name="line.129"></a><FONT color="green">130</FONT> * @return The tool tip text (possibly <code>null</code>).<a name="line.130"></a><FONT color="green">131</FONT> */<a name="line.131"></a><FONT color="green">132</FONT> public String generateToolTip(PieDataset dataset, Comparable key) {<a name="line.132"></a><FONT color="green">133</FONT> return generateSectionLabel(dataset, key);<a name="line.133"></a><FONT color="green">134</FONT> }<a name="line.134"></a><FONT color="green">135</FONT> <a name="line.135"></a><FONT color="green">136</FONT> /**<a name="line.136"></a><FONT color="green">137</FONT> * Returns an independent copy of the generator.<a name="line.137"></a><FONT color="green">138</FONT> * <a name="line.138"></a><FONT color="green">139</FONT> * @return A clone.<a name="line.139"></a><FONT color="green">140</FONT> * <a name="line.140"></a><FONT color="green">141</FONT> * @throws CloneNotSupportedException should not happen.<a name="line.141"></a><FONT color="green">142</FONT> */<a name="line.142"></a><FONT color="green">143</FONT> public Object clone() throws CloneNotSupportedException { <a name="line.143"></a><FONT color="green">144</FONT> return super.clone();<a name="line.144"></a><FONT color="green">145</FONT> }<a name="line.145"></a><FONT color="green">146</FONT> <a name="line.146"></a><FONT color="green">147</FONT> }<a name="line.147"></a></PRE></BODY></HTML>⌨️ 快捷键说明
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