📄 standardcategoryserieslabelgenerator.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 2000-2006, 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>     * StandardCategorySeriesLabelGenerator.java<a name="line.28"></a><FONT color="green">029</FONT>     * -----------------------------------------<a name="line.29"></a><FONT color="green">030</FONT>     * (C) Copyright 2005, 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):   -;<a name="line.33"></a><FONT color="green">034</FONT>     *<a name="line.34"></a><FONT color="green">035</FONT>     * $Id: StandardCategorySeriesLabelGenerator.java,v 1.2.2.2 2006/05/03 15:44:02 mungady Exp $<a name="line.35"></a><FONT color="green">036</FONT>     *<a name="line.36"></a><FONT color="green">037</FONT>     * Changes<a name="line.37"></a><FONT color="green">038</FONT>     * -------<a name="line.38"></a><FONT color="green">039</FONT>     * 20-Apr-2005 : Version 1 (DG);<a name="line.39"></a><FONT color="green">040</FONT>     * ------------- JFREECHART 1.0.0 ---------------------------------------------<a name="line.40"></a><FONT color="green">041</FONT>     * 03-May-2006 : Fixed equals() method (bug 1481102) (DG);<a name="line.41"></a><FONT color="green">042</FONT>     *<a name="line.42"></a><FONT color="green">043</FONT>     */<a name="line.43"></a><FONT color="green">044</FONT>    <a name="line.44"></a><FONT color="green">045</FONT>    package org.jfree.chart.labels;<a name="line.45"></a><FONT color="green">046</FONT>    <a name="line.46"></a><FONT color="green">047</FONT>    import java.io.Serializable;<a name="line.47"></a><FONT color="green">048</FONT>    import java.text.MessageFormat;<a name="line.48"></a><FONT color="green">049</FONT>    <a name="line.49"></a><FONT color="green">050</FONT>    import org.jfree.data.category.CategoryDataset;<a name="line.50"></a><FONT color="green">051</FONT>    import org.jfree.util.PublicCloneable;<a name="line.51"></a><FONT color="green">052</FONT>    <a name="line.52"></a><FONT color="green">053</FONT>    /**<a name="line.53"></a><FONT color="green">054</FONT>     * A standard series label generator for plots that use data from <a name="line.54"></a><FONT color="green">055</FONT>     * a {@link org.jfree.data.category.CategoryDataset}.<a name="line.55"></a><FONT color="green">056</FONT>     */<a name="line.56"></a><FONT color="green">057</FONT>    public class StandardCategorySeriesLabelGenerator implements <a name="line.57"></a><FONT color="green">058</FONT>        CategorySeriesLabelGenerator, Cloneable, PublicCloneable, Serializable {<a name="line.58"></a><FONT color="green">059</FONT>    <a name="line.59"></a><FONT color="green">060</FONT>        /** For serialization. */<a name="line.60"></a><FONT color="green">061</FONT>        private static final long serialVersionUID = 4630760091523940820L;<a name="line.61"></a><FONT color="green">062</FONT>        <a name="line.62"></a><FONT color="green">063</FONT>        /** The default item label format. */<a name="line.63"></a><FONT color="green">064</FONT>        public static final String DEFAULT_LABEL_FORMAT = "{0}";<a name="line.64"></a><FONT color="green">065</FONT>        <a name="line.65"></a><FONT color="green">066</FONT>        /** The format pattern. */<a name="line.66"></a><FONT color="green">067</FONT>        private String formatPattern;<a name="line.67"></a><FONT color="green">068</FONT>    <a name="line.68"></a><FONT color="green">069</FONT>        /**<a name="line.69"></a><FONT color="green">070</FONT>         * Creates a default series label generator (uses <a name="line.70"></a><FONT color="green">071</FONT>         * {@link #DEFAULT_LABEL_FORMAT}).<a name="line.71"></a><FONT color="green">072</FONT>         */<a name="line.72"></a><FONT color="green">073</FONT>        public StandardCategorySeriesLabelGenerator() {<a name="line.73"></a><FONT color="green">074</FONT>            this(DEFAULT_LABEL_FORMAT);<a name="line.74"></a><FONT color="green">075</FONT>        }<a name="line.75"></a><FONT color="green">076</FONT>        <a name="line.76"></a><FONT color="green">077</FONT>        /**<a name="line.77"></a><FONT color="green">078</FONT>         * Creates a new series label generator.<a name="line.78"></a><FONT color="green">079</FONT>         * <a name="line.79"></a><FONT color="green">080</FONT>         * @param format  the format pattern (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.80"></a><FONT color="green">081</FONT>         */<a name="line.81"></a><FONT color="green">082</FONT>        public StandardCategorySeriesLabelGenerator(String format) {<a name="line.82"></a><FONT color="green">083</FONT>            if (format == null) {<a name="line.83"></a><FONT color="green">084</FONT>                throw new IllegalArgumentException("Null 'format' argument.");<a name="line.84"></a><FONT color="green">085</FONT>            }<a name="line.85"></a><FONT color="green">086</FONT>            this.formatPattern = format;<a name="line.86"></a><FONT color="green">087</FONT>        }<a name="line.87"></a><FONT color="green">088</FONT>    <a name="line.88"></a><FONT color="green">089</FONT>        /**<a name="line.89"></a><FONT color="green">090</FONT>         * Generates a label for the specified series.<a name="line.90"></a><FONT color="green">091</FONT>         * <a name="line.91"></a><FONT color="green">092</FONT>         * @param dataset  the dataset (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.92"></a><FONT color="green">093</FONT>         * @param series  the series.<a name="line.93"></a><FONT color="green">094</FONT>         * <a name="line.94"></a><FONT color="green">095</FONT>         * @return A series label.<a name="line.95"></a><FONT color="green">096</FONT>         */<a name="line.96"></a><FONT color="green">097</FONT>        public String generateLabel(CategoryDataset dataset, int series) {<a name="line.97"></a><FONT color="green">098</FONT>            if (dataset == null) {<a name="line.98"></a><FONT color="green">099</FONT>                throw new IllegalArgumentException("Null 'dataset' argument.");<a name="line.99"></a><FONT color="green">100</FONT>            }<a name="line.100"></a><FONT color="green">101</FONT>            String label = MessageFormat.format(this.formatPattern, <a name="line.101"></a><FONT color="green">102</FONT>                    createItemArray(dataset, series));<a name="line.102"></a><FONT color="green">103</FONT>            return label;<a name="line.103"></a><FONT color="green">104</FONT>        }<a name="line.104"></a><FONT color="green">105</FONT>    <a name="line.105"></a><FONT color="green">106</FONT>        /**<a name="line.106"></a><FONT color="green">107</FONT>         * Creates the array of items that can be passed to the <a name="line.107"></a><FONT color="green">108</FONT>         * {@link MessageFormat} class for creating labels.<a name="line.108"></a><FONT color="green">109</FONT>         *<a name="line.109"></a><FONT color="green">110</FONT>         * @param dataset  the dataset (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.110"></a><FONT color="green">111</FONT>         * @param series  the series (zero-based index).<a name="line.111"></a><FONT color="green">112</FONT>         *<a name="line.112"></a><FONT color="green">113</FONT>         * @return The items (never &lt;code&gt;null&lt;/code&gt;).<a name="line.113"></a><FONT color="green">114</FONT>         */<a name="line.114"></a><FONT color="green">115</FONT>        protected Object[] createItemArray(CategoryDataset dataset, int series) {<a name="line.115"></a><FONT color="green">116</FONT>            Object[] result = new Object[1];<a name="line.116"></a><FONT color="green">117</FONT>            result[0] = dataset.getRowKey(series).toString();<a name="line.117"></a><FONT color="green">118</FONT>            return result;<a name="line.118"></a><FONT color="green">119</FONT>        }<a name="line.119"></a><FONT color="green">120</FONT>    <a name="line.120"></a><FONT color="green">121</FONT>        /**<a name="line.121"></a><FONT color="green">122</FONT>         * Returns an independent copy of the generator.<a name="line.122"></a><FONT color="green">123</FONT>         * <a name="line.123"></a><FONT color="green">124</FONT>         * @return A clone.<a name="line.124"></a><FONT color="green">125</FONT>         * <a name="line.125"></a><FONT color="green">126</FONT>         * @throws CloneNotSupportedException if cloning is not supported.<a name="line.126"></a><FONT color="green">127</FONT>         */<a name="line.127"></a><FONT color="green">128</FONT>        public Object clone() throws CloneNotSupportedException { <a name="line.128"></a><FONT color="green">129</FONT>            return super.clone();<a name="line.129"></a><FONT color="green">130</FONT>        }<a name="line.130"></a><FONT color="green">131</FONT>        <a name="line.131"></a><FONT color="green">132</FONT>        /**<a name="line.132"></a><FONT color="green">133</FONT>         * Tests this object for equality with an arbitrary object.<a name="line.133"></a><FONT color="green">134</FONT>         *<a name="line.134"></a><FONT color="green">135</FONT>         * @param obj  the other object (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.135"></a><FONT color="green">136</FONT>         *<a name="line.136"></a><FONT color="green">137</FONT>         * @return A boolean.<a name="line.137"></a><FONT color="green">138</FONT>         */<a name="line.138"></a><FONT color="green">139</FONT>        public boolean equals(Object obj) {<a name="line.139"></a><FONT color="green">140</FONT>            if (obj == this) {<a name="line.140"></a><FONT color="green">141</FONT>                return true;<a name="line.141"></a><FONT color="green">142</FONT>            }<a name="line.142"></a><FONT color="green">143</FONT>            if (!(obj instanceof StandardCategorySeriesLabelGenerator)) {<a name="line.143"></a><FONT color="green">144</FONT>                return false;<a name="line.144"></a><FONT color="green">145</FONT>            }<a name="line.145"></a><FONT color="green">146</FONT>            StandardCategorySeriesLabelGenerator that <a name="line.146"></a><FONT color="green">147</FONT>                    = (StandardCategorySeriesLabelGenerator) obj;<a name="line.147"></a><FONT color="green">148</FONT>            if (!this.formatPattern.equals(that.formatPattern)) {<a name="line.148"></a><FONT color="green">149</FONT>                return false;<a name="line.149"></a><FONT color="green">150</FONT>            }<a name="line.150"></a><FONT color="green">151</FONT>            return true;<a name="line.151"></a><FONT color="green">152</FONT>        }<a name="line.152"></a><FONT color="green">153</FONT>    <a name="line.153"></a><FONT color="green">154</FONT>    }<a name="line.154"></a></PRE></BODY></HTML>
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