abstractxyitemlabelgenerator.html

jfreechart最新源代码

<FONT color="green">200</FONT>        /**<a name="line.200"></a>
<FONT color="green">201</FONT>         * Returns the number formatter for the y-values.<a name="line.201"></a>
<FONT color="green">202</FONT>         *<a name="line.202"></a>
<FONT color="green">203</FONT>         * @return The number formatter (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.203"></a>
<FONT color="green">204</FONT>         */<a name="line.204"></a>
<FONT color="green">205</FONT>        public NumberFormat getYFormat() {<a name="line.205"></a>
<FONT color="green">206</FONT>            return this.yFormat;<a name="line.206"></a>
<FONT color="green">207</FONT>        }<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>         * Returns the date formatter for the y-values.<a name="line.210"></a>
<FONT color="green">211</FONT>         *<a name="line.211"></a>
<FONT color="green">212</FONT>         * @return The date formatter (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.212"></a>
<FONT color="green">213</FONT>         */<a name="line.213"></a>
<FONT color="green">214</FONT>        public DateFormat getYDateFormat() {<a name="line.214"></a>
<FONT color="green">215</FONT>            return this.yDateFormat;<a name="line.215"></a>
<FONT color="green">216</FONT>        }<a name="line.216"></a>
<FONT color="green">217</FONT>    <a name="line.217"></a>
<FONT color="green">218</FONT>        /**<a name="line.218"></a>
<FONT color="green">219</FONT>         * Generates a label string for an item in the dataset.<a name="line.219"></a>
<FONT color="green">220</FONT>         *<a name="line.220"></a>
<FONT color="green">221</FONT>         * @param dataset  the dataset (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.221"></a>
<FONT color="green">222</FONT>         * @param series  the series (zero-based index).<a name="line.222"></a>
<FONT color="green">223</FONT>         * @param item  the item (zero-based index).<a name="line.223"></a>
<FONT color="green">224</FONT>         *<a name="line.224"></a>
<FONT color="green">225</FONT>         * @return The label (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.225"></a>
<FONT color="green">226</FONT>         */<a name="line.226"></a>
<FONT color="green">227</FONT>        public String generateLabelString(XYDataset dataset, int series, int item) {<a name="line.227"></a>
<FONT color="green">228</FONT>            String result = null;    <a name="line.228"></a>
<FONT color="green">229</FONT>            Object[] items = createItemArray(dataset, series, item);<a name="line.229"></a>
<FONT color="green">230</FONT>            result = MessageFormat.format(this.formatString, items);<a name="line.230"></a>
<FONT color="green">231</FONT>            return result;<a name="line.231"></a>
<FONT color="green">232</FONT>        }<a name="line.232"></a>
<FONT color="green">233</FONT>    <a name="line.233"></a>
<FONT color="green">234</FONT>        /**<a name="line.234"></a>
<FONT color="green">235</FONT>         * Creates the array of items that can be passed to the <a name="line.235"></a>
<FONT color="green">236</FONT>         * {@link MessageFormat} class for creating labels.<a name="line.236"></a>
<FONT color="green">237</FONT>         *<a name="line.237"></a>
<FONT color="green">238</FONT>         * @param dataset  the dataset (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.238"></a>
<FONT color="green">239</FONT>         * @param series  the series (zero-based index).<a name="line.239"></a>
<FONT color="green">240</FONT>         * @param item  the item (zero-based index).<a name="line.240"></a>
<FONT color="green">241</FONT>         *<a name="line.241"></a>
<FONT color="green">242</FONT>         * @return An array of three items from the dataset formatted as<a name="line.242"></a>
<FONT color="green">243</FONT>         *         &lt;code&gt;String&lt;/code&gt; objects (never &lt;code&gt;null&lt;/code&gt;).<a name="line.243"></a>
<FONT color="green">244</FONT>         */<a name="line.244"></a>
<FONT color="green">245</FONT>        protected Object[] createItemArray(XYDataset dataset, int series, <a name="line.245"></a>
<FONT color="green">246</FONT>                                           int item) {<a name="line.246"></a>
<FONT color="green">247</FONT>            Object[] result = new Object[3];<a name="line.247"></a>
<FONT color="green">248</FONT>            result[0] = dataset.getSeriesKey(series).toString();<a name="line.248"></a>
<FONT color="green">249</FONT>            <a name="line.249"></a>
<FONT color="green">250</FONT>            double x = dataset.getXValue(series, item);<a name="line.250"></a>
<FONT color="green">251</FONT>            if (Double.isNaN(x) &amp;&amp; dataset.getX(series, item) == null) {<a name="line.251"></a>
<FONT color="green">252</FONT>                result[1] = this.nullXString;<a name="line.252"></a>
<FONT color="green">253</FONT>            }<a name="line.253"></a>
<FONT color="green">254</FONT>            else {<a name="line.254"></a>
<FONT color="green">255</FONT>                if (this.xDateFormat != null) {<a name="line.255"></a>
<FONT color="green">256</FONT>                    result[1] = this.xDateFormat.format(new Date((long) x));   <a name="line.256"></a>
<FONT color="green">257</FONT>                }<a name="line.257"></a>
<FONT color="green">258</FONT>                else {<a name="line.258"></a>
<FONT color="green">259</FONT>                    result[1] = this.xFormat.format(x);<a name="line.259"></a>
<FONT color="green">260</FONT>                }<a name="line.260"></a>
<FONT color="green">261</FONT>            }<a name="line.261"></a>
<FONT color="green">262</FONT>            <a name="line.262"></a>
<FONT color="green">263</FONT>            double y = dataset.getYValue(series, item);<a name="line.263"></a>
<FONT color="green">264</FONT>            if (Double.isNaN(y) &amp;&amp; dataset.getY(series, item) == null) {<a name="line.264"></a>
<FONT color="green">265</FONT>                result[2] = this.nullYString;<a name="line.265"></a>
<FONT color="green">266</FONT>            }<a name="line.266"></a>
<FONT color="green">267</FONT>            else {<a name="line.267"></a>
<FONT color="green">268</FONT>                if (this.yDateFormat != null) {<a name="line.268"></a>
<FONT color="green">269</FONT>                    result[2] = this.yDateFormat.format(new Date((long) y));   <a name="line.269"></a>
<FONT color="green">270</FONT>                }<a name="line.270"></a>
<FONT color="green">271</FONT>                else {<a name="line.271"></a>
<FONT color="green">272</FONT>                    result[2] = this.yFormat.format(y);<a name="line.272"></a>
<FONT color="green">273</FONT>                }<a name="line.273"></a>
<FONT color="green">274</FONT>            }<a name="line.274"></a>
<FONT color="green">275</FONT>            return result;<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>        /**<a name="line.278"></a>
<FONT color="green">279</FONT>         * Tests this object for equality with an arbitrary object.<a name="line.279"></a>
<FONT color="green">280</FONT>         *<a name="line.280"></a>
<FONT color="green">281</FONT>         * @param obj  the other object (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.281"></a>
<FONT color="green">282</FONT>         *<a name="line.282"></a>
<FONT color="green">283</FONT>         * @return A boolean.<a name="line.283"></a>
<FONT color="green">284</FONT>         */<a name="line.284"></a>
<FONT color="green">285</FONT>        public boolean equals(Object obj) {<a name="line.285"></a>
<FONT color="green">286</FONT>            if (obj == this) {<a name="line.286"></a>
<FONT color="green">287</FONT>                return true;<a name="line.287"></a>
<FONT color="green">288</FONT>            }<a name="line.288"></a>
<FONT color="green">289</FONT>            if (!(obj instanceof AbstractXYItemLabelGenerator)) {<a name="line.289"></a>
<FONT color="green">290</FONT>                return false;<a name="line.290"></a>
<FONT color="green">291</FONT>            }<a name="line.291"></a>
<FONT color="green">292</FONT>            AbstractXYItemLabelGenerator that = (AbstractXYItemLabelGenerator) obj;<a name="line.292"></a>
<FONT color="green">293</FONT>            if (!this.formatString.equals(that.formatString)) {<a name="line.293"></a>
<FONT color="green">294</FONT>                return false;   <a name="line.294"></a>
<FONT color="green">295</FONT>            }<a name="line.295"></a>
<FONT color="green">296</FONT>            if (!ObjectUtilities.equal(this.xFormat, that.xFormat)) {<a name="line.296"></a>
<FONT color="green">297</FONT>                return false;   <a name="line.297"></a>
<FONT color="green">298</FONT>            }<a name="line.298"></a>
<FONT color="green">299</FONT>            if (!ObjectUtilities.equal(this.xDateFormat, that.xDateFormat)) {<a name="line.299"></a>
<FONT color="green">300</FONT>                return false;   <a name="line.300"></a>
<FONT color="green">301</FONT>            }<a name="line.301"></a>
<FONT color="green">302</FONT>            if (!ObjectUtilities.equal(this.yFormat, that.yFormat)) {<a name="line.302"></a>
<FONT color="green">303</FONT>                return false;   <a name="line.303"></a>
<FONT color="green">304</FONT>            }<a name="line.304"></a>
<FONT color="green">305</FONT>            if (!ObjectUtilities.equal(this.yDateFormat, that.yDateFormat)) {<a name="line.305"></a>
<FONT color="green">306</FONT>                return false;   <a name="line.306"></a>
<FONT color="green">307</FONT>            }<a name="line.307"></a>
<FONT color="green">308</FONT>            return true;<a name="line.308"></a>
<FONT color="green">309</FONT>            <a name="line.309"></a>
<FONT color="green">310</FONT>        }<a name="line.310"></a>
<FONT color="green">311</FONT>    <a name="line.311"></a>
<FONT color="green">312</FONT>        /**<a name="line.312"></a>
<FONT color="green">313</FONT>         * Returns an independent copy of the generator.<a name="line.313"></a>
<FONT color="green">314</FONT>         * <a name="line.314"></a>
<FONT color="green">315</FONT>         * @return A clone.<a name="line.315"></a>
<FONT color="green">316</FONT>         * <a name="line.316"></a>
<FONT color="green">317</FONT>         * @throws CloneNotSupportedException if cloning is not supported.<a name="line.317"></a>
<FONT color="green">318</FONT>         */<a name="line.318"></a>
<FONT color="green">319</FONT>        public Object clone() throws CloneNotSupportedException {<a name="line.319"></a>
<FONT color="green">320</FONT>            <a name="line.320"></a>
<FONT color="green">321</FONT>            AbstractXYItemLabelGenerator clone <a name="line.321"></a>
<FONT color="green">322</FONT>                = (AbstractXYItemLabelGenerator) super.clone();<a name="line.322"></a>
<FONT color="green">323</FONT>    <a name="line.323"></a>
<FONT color="green">324</FONT>            if (this.xFormat != null) {<a name="line.324"></a>
<FONT color="green">325</FONT>                clone.xFormat = (NumberFormat) this.xFormat.clone();<a name="line.325"></a>
<FONT color="green">326</FONT>            }<a name="line.326"></a>
<FONT color="green">327</FONT>            <a name="line.327"></a>
<FONT color="green">328</FONT>            if (this.yFormat != null) {<a name="line.328"></a>
<FONT color="green">329</FONT>                clone.yFormat = (NumberFormat) this.yFormat.clone();<a name="line.329"></a>
<FONT color="green">330</FONT>            }<a name="line.330"></a>
<FONT color="green">331</FONT>            <a name="line.331"></a>
<FONT color="green">332</FONT>            return clone;<a name="line.332"></a>
<FONT color="green">333</FONT>            <a name="line.333"></a>
<FONT color="green">334</FONT>        }<a name="line.334"></a>
<FONT color="green">335</FONT>        <a name="line.335"></a>
<FONT color="green">336</FONT>    }<a name="line.336"></a>




























































</PRE>
</BODY>
</HTML>