abstractcategoryitemrenderer.html

jfreechart1。0。2的api。

<FONT color="green">139</FONT>     * but it makes the job easier.<a name="line.139"></a>
<FONT color="green">140</FONT>     */<a name="line.140"></a>
<FONT color="green">141</FONT>    public abstract class AbstractCategoryItemRenderer extends AbstractRenderer<a name="line.141"></a>
<FONT color="green">142</FONT>        implements CategoryItemRenderer, Cloneable, PublicCloneable, Serializable {<a name="line.142"></a>
<FONT color="green">143</FONT>    <a name="line.143"></a>
<FONT color="green">144</FONT>        /** For serialization. */<a name="line.144"></a>
<FONT color="green">145</FONT>        private static final long serialVersionUID = 1247553218442497391L;<a name="line.145"></a>
<FONT color="green">146</FONT>        <a name="line.146"></a>
<FONT color="green">147</FONT>        /** The plot that the renderer is assigned to. */<a name="line.147"></a>
<FONT color="green">148</FONT>        private CategoryPlot plot;<a name="line.148"></a>
<FONT color="green">149</FONT>    <a name="line.149"></a>
<FONT color="green">150</FONT>        /** The item label generator for ALL series. */<a name="line.150"></a>
<FONT color="green">151</FONT>        private CategoryItemLabelGenerator itemLabelGenerator;<a name="line.151"></a>
<FONT color="green">152</FONT>    <a name="line.152"></a>
<FONT color="green">153</FONT>        /** A list of item label generators (one per series). */<a name="line.153"></a>
<FONT color="green">154</FONT>        private ObjectList itemLabelGeneratorList;<a name="line.154"></a>
<FONT color="green">155</FONT>    <a name="line.155"></a>
<FONT color="green">156</FONT>        /** The base item label generator. */<a name="line.156"></a>
<FONT color="green">157</FONT>        private CategoryItemLabelGenerator baseItemLabelGenerator;<a name="line.157"></a>
<FONT color="green">158</FONT>    <a name="line.158"></a>
<FONT color="green">159</FONT>        /** The tool tip generator for ALL series. */<a name="line.159"></a>
<FONT color="green">160</FONT>        private CategoryToolTipGenerator toolTipGenerator;<a name="line.160"></a>
<FONT color="green">161</FONT>    <a name="line.161"></a>
<FONT color="green">162</FONT>        /** A list of tool tip generators (one per series). */<a name="line.162"></a>
<FONT color="green">163</FONT>        private ObjectList toolTipGeneratorList;<a name="line.163"></a>
<FONT color="green">164</FONT>    <a name="line.164"></a>
<FONT color="green">165</FONT>        /** The base tool tip generator. */<a name="line.165"></a>
<FONT color="green">166</FONT>        private CategoryToolTipGenerator baseToolTipGenerator;<a name="line.166"></a>
<FONT color="green">167</FONT>    <a name="line.167"></a>
<FONT color="green">168</FONT>        /** The URL generator. */<a name="line.168"></a>
<FONT color="green">169</FONT>        private CategoryURLGenerator itemURLGenerator;<a name="line.169"></a>
<FONT color="green">170</FONT>    <a name="line.170"></a>
<FONT color="green">171</FONT>        /** A list of item label generators (one per series). */<a name="line.171"></a>
<FONT color="green">172</FONT>        private ObjectList itemURLGeneratorList;<a name="line.172"></a>
<FONT color="green">173</FONT>    <a name="line.173"></a>
<FONT color="green">174</FONT>        /** The base item label generator. */<a name="line.174"></a>
<FONT color="green">175</FONT>        private CategoryURLGenerator baseItemURLGenerator;<a name="line.175"></a>
<FONT color="green">176</FONT>    <a name="line.176"></a>
<FONT color="green">177</FONT>        /** The legend item label generator. */<a name="line.177"></a>
<FONT color="green">178</FONT>        private CategorySeriesLabelGenerator legendItemLabelGenerator;<a name="line.178"></a>
<FONT color="green">179</FONT>        <a name="line.179"></a>
<FONT color="green">180</FONT>        /** The legend item tool tip generator. */<a name="line.180"></a>
<FONT color="green">181</FONT>        private CategorySeriesLabelGenerator legendItemToolTipGenerator;<a name="line.181"></a>
<FONT color="green">182</FONT>    <a name="line.182"></a>
<FONT color="green">183</FONT>        /** The legend item URL generator. */<a name="line.183"></a>
<FONT color="green">184</FONT>        private CategorySeriesLabelGenerator legendItemURLGenerator;<a name="line.184"></a>
<FONT color="green">185</FONT>        <a name="line.185"></a>
<FONT color="green">186</FONT>        /** The number of rows in the dataset (temporary record). */<a name="line.186"></a>
<FONT color="green">187</FONT>        private transient int rowCount;<a name="line.187"></a>
<FONT color="green">188</FONT>    <a name="line.188"></a>
<FONT color="green">189</FONT>        /** The number of columns in the dataset (temporary record). */<a name="line.189"></a>
<FONT color="green">190</FONT>        private transient int columnCount;<a name="line.190"></a>
<FONT color="green">191</FONT>    <a name="line.191"></a>
<FONT color="green">192</FONT>        /**<a name="line.192"></a>
<FONT color="green">193</FONT>         * Creates a new renderer with no tool tip generator and no URL generator.<a name="line.193"></a>
<FONT color="green">194</FONT>         * The defaults (no tool tip or URL generators) have been chosen to <a name="line.194"></a>
<FONT color="green">195</FONT>         * minimise the processing required to generate a default chart.  If you <a name="line.195"></a>
<FONT color="green">196</FONT>         * require tool tips or URLs, then you can easily add the required <a name="line.196"></a>
<FONT color="green">197</FONT>         * generators.<a name="line.197"></a>
<FONT color="green">198</FONT>         */<a name="line.198"></a>
<FONT color="green">199</FONT>        protected AbstractCategoryItemRenderer() {<a name="line.199"></a>
<FONT color="green">200</FONT>            this.itemLabelGenerator = null;<a name="line.200"></a>
<FONT color="green">201</FONT>            this.itemLabelGeneratorList = new ObjectList();<a name="line.201"></a>
<FONT color="green">202</FONT>            this.toolTipGenerator = null;<a name="line.202"></a>
<FONT color="green">203</FONT>            this.toolTipGeneratorList = new ObjectList();<a name="line.203"></a>
<FONT color="green">204</FONT>            this.itemURLGenerator = null;<a name="line.204"></a>
<FONT color="green">205</FONT>            this.itemURLGeneratorList = new ObjectList();<a name="line.205"></a>
<FONT color="green">206</FONT>            this.legendItemLabelGenerator <a name="line.206"></a>
<FONT color="green">207</FONT>                = new StandardCategorySeriesLabelGenerator();<a name="line.207"></a>
<FONT color="green">208</FONT>        }<a name="line.208"></a>
<FONT color="green">209</FONT>        <a name="line.209"></a>
<FONT color="green">210</FONT>        /**<a name="line.210"></a>
<FONT color="green">211</FONT>         * Returns the number of passes through the dataset required by the <a name="line.211"></a>
<FONT color="green">212</FONT>         * renderer.  This method returns &lt;code&gt;1&lt;/code&gt;, subclasses should <a name="line.212"></a>
<FONT color="green">213</FONT>         * override if they need more passes.<a name="line.213"></a>
<FONT color="green">214</FONT>         * <a name="line.214"></a>
<FONT color="green">215</FONT>         * @return The pass count.<a name="line.215"></a>
<FONT color="green">216</FONT>         */<a name="line.216"></a>
<FONT color="green">217</FONT>        public int getPassCount() {<a name="line.217"></a>
<FONT color="green">218</FONT>            return 1;<a name="line.218"></a>
<FONT color="green">219</FONT>        }<a name="line.219"></a>
<FONT color="green">220</FONT>    <a name="line.220"></a>
<FONT color="green">221</FONT>        /**<a name="line.221"></a>
<FONT color="green">222</FONT>         * Returns the plot that the renderer has been assigned to (where <a name="line.222"></a>
<FONT color="green">223</FONT>         * &lt;code&gt;null&lt;/code&gt; indicates that the renderer is not currently assigned <a name="line.223"></a>
<FONT color="green">224</FONT>         * to a plot).<a name="line.224"></a>
<FONT color="green">225</FONT>         *<a name="line.225"></a>
<FONT color="green">226</FONT>         * @return The plot (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.226"></a>
<FONT color="green">227</FONT>         */<a name="line.227"></a>
<FONT color="green">228</FONT>        public CategoryPlot getPlot() {<a name="line.228"></a>
<FONT color="green">229</FONT>            return this.plot;<a name="line.229"></a>
<FONT color="green">230</FONT>        }<a name="line.230"></a>
<FONT color="green">231</FONT>    <a name="line.231"></a>
<FONT color="green">232</FONT>        /**<a name="line.232"></a>
<FONT color="green">233</FONT>         * Sets the plot that the renderer has been assigned to.  This method is <a name="line.233"></a>
<FONT color="green">234</FONT>         * usually called by the {@link CategoryPlot}, in normal usage you <a name="line.234"></a>
<FONT color="green">235</FONT>         * shouldn't need to call this method directly.<a name="line.235"></a>
<FONT color="green">236</FONT>         *<a name="line.236"></a>
<FONT color="green">237</FONT>         * @param plot  the plot (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.237"></a>
<FONT color="green">238</FONT>         */<a name="line.238"></a>
<FONT color="green">239</FONT>        public void setPlot(CategoryPlot plot) {<a name="line.239"></a>
<FONT color="green">240</FONT>            if (plot == null) {<a name="line.240"></a>
<FONT color="green">241</FONT>                throw new IllegalArgumentException("Null 'plot' argument.");   <a name="line.241"></a>
<FONT color="green">242</FONT>            }<a name="line.242"></a>
<FONT color="green">243</FONT>            this.plot = plot;<a name="line.243"></a>
<FONT color="green">244</FONT>        }<a name="line.244"></a>
<FONT color="green">245</FONT>        <a name="line.245"></a>
<FONT color="green">246</FONT>        // ITEM LABEL GENERATOR<a name="line.246"></a>
<FONT color="green">247</FONT>    <a name="line.247"></a>
<FONT color="green">248</FONT>        /**<a name="line.248"></a>
<FONT color="green">249</FONT>         * Returns the item label generator for a data item.  This implementation <a name="line.249"></a>
<FONT color="green">250</FONT>         * simply passes control to the {@link #getSeriesItemLabelGenerator(int)} <a name="line.250"></a>
<FONT color="green">251</FONT>         * method.  If, for some reason, you want a different generator for <a name="line.251"></a>
<FONT color="green">252</FONT>         * individual items, you can override this method.<a name="line.252"></a>
<FONT color="green">253</FONT>         *<a name="line.253"></a>
<FONT color="green">254</FONT>         * @param row  the row index (zero based).<a name="line.254"></a>
<FONT color="green">255</FONT>         * @param column  the column index (zero based).<a name="line.255"></a>
<FONT color="green">256</FONT>         *<a name="line.256"></a>
<FONT color="green">257</FONT>         * @return The generator (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.257"></a>
<FONT color="green">258</FONT>         */<a name="line.258"></a>
<FONT color="green">259</FONT>        public CategoryItemLabelGenerator getItemLabelGenerator(int row, <a name="line.259"></a>
<FONT color="green">260</FONT>                int column) {<a name="line.260"></a>
<FONT color="green">261</FONT>            return getSeriesItemLabelGenerator(row);<a name="line.261"></a>
<FONT color="green">262</FONT>        }<a name="line.262"></a>
<FONT color="green">263</FONT>    <a name="line.263"></a>
<FONT color="green">264</FONT>        /**<a name="line.264"></a>
<FONT color="green">265</FONT>         * Returns the item label generator for a series.<a name="line.265"></a>
<FONT color="green">266</FONT>         *<a name="line.266"></a>
<FONT color="green">267</FONT>         * @param series  the series index (zero based).<a name="line.267"></a>
<FONT color="green">268</FONT>         *<a name="line.268"></a>
<FONT color="green">269</FONT>         * @return The generator (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.269"></a>
<FONT color="green">270</FONT>         */<a name="line.270"></a>
<FONT color="green">271</FONT>        public CategoryItemLabelGenerator getSeriesItemLabelGenerator(int series) {<a name="line.271"></a>
<FONT color="green">272</FONT>    <a name="line.272"></a>
<FONT color="green">273</FONT>            // return the generator for ALL series, if there is one...<a name="line.273"></a>
<FONT color="green">274</FONT>            if (this.itemLabelGenerator != null) {<a name="line.274"></a>
<FONT color="green">275</FONT>                return this.itemLabelGenerator;<a name="line.275"></a>
<FONT color="green">276</FONT>            }<a name="line.276"></a>
<FONT color="green">277</FONT>    <a name="line.277"></a>
<FONT color="green">278</FONT>            // otherwise look up the generator table<a name="line.278"></a>
<FONT color="green">279</FONT>            CategoryItemLabelGenerator generator = (CategoryItemLabelGenerator) <a name="line.279"></a>