taskseriescollection.html

jfreechart1。0。2的api。

<FONT color="green">181</FONT>         * @return The category list.<a name="line.181"></a>
<FONT color="green">182</FONT>         */<a name="line.182"></a>
<FONT color="green">183</FONT>        public List getColumnKeys() {<a name="line.183"></a>
<FONT color="green">184</FONT>            return this.keys;<a name="line.184"></a>
<FONT color="green">185</FONT>        }<a name="line.185"></a>
<FONT color="green">186</FONT>    <a name="line.186"></a>
<FONT color="green">187</FONT>        /**<a name="line.187"></a>
<FONT color="green">188</FONT>         * Returns a column key.<a name="line.188"></a>
<FONT color="green">189</FONT>         *<a name="line.189"></a>
<FONT color="green">190</FONT>         * @param index  the column index.<a name="line.190"></a>
<FONT color="green">191</FONT>         *<a name="line.191"></a>
<FONT color="green">192</FONT>         * @return The column key.<a name="line.192"></a>
<FONT color="green">193</FONT>         */<a name="line.193"></a>
<FONT color="green">194</FONT>        public Comparable getColumnKey(int index) {<a name="line.194"></a>
<FONT color="green">195</FONT>            return (Comparable) this.keys.get(index);<a name="line.195"></a>
<FONT color="green">196</FONT>        }<a name="line.196"></a>
<FONT color="green">197</FONT>    <a name="line.197"></a>
<FONT color="green">198</FONT>        /**<a name="line.198"></a>
<FONT color="green">199</FONT>         * Returns the column index for a column key.<a name="line.199"></a>
<FONT color="green">200</FONT>         *<a name="line.200"></a>
<FONT color="green">201</FONT>         * @param columnKey  the columnKey.<a name="line.201"></a>
<FONT color="green">202</FONT>         *<a name="line.202"></a>
<FONT color="green">203</FONT>         * @return The column index.<a name="line.203"></a>
<FONT color="green">204</FONT>         */<a name="line.204"></a>
<FONT color="green">205</FONT>        public int getColumnIndex(Comparable columnKey) {<a name="line.205"></a>
<FONT color="green">206</FONT>            return this.keys.indexOf(columnKey);<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 row index for the given row key.<a name="line.210"></a>
<FONT color="green">211</FONT>         *<a name="line.211"></a>
<FONT color="green">212</FONT>         * @param rowKey  the row key.<a name="line.212"></a>
<FONT color="green">213</FONT>         *<a name="line.213"></a>
<FONT color="green">214</FONT>         * @return The index.<a name="line.214"></a>
<FONT color="green">215</FONT>         */<a name="line.215"></a>
<FONT color="green">216</FONT>        public int getRowIndex(Comparable rowKey) {<a name="line.216"></a>
<FONT color="green">217</FONT>            int result = -1;<a name="line.217"></a>
<FONT color="green">218</FONT>            int count = this.data.size();<a name="line.218"></a>
<FONT color="green">219</FONT>            for (int i = 0; i &lt; count; i++) {<a name="line.219"></a>
<FONT color="green">220</FONT>                TaskSeries s = (TaskSeries) this.data.get(i);<a name="line.220"></a>
<FONT color="green">221</FONT>                if (s.getKey().equals(rowKey)) {<a name="line.221"></a>
<FONT color="green">222</FONT>                    result = i;<a name="line.222"></a>
<FONT color="green">223</FONT>                    break;<a name="line.223"></a>
<FONT color="green">224</FONT>                }<a name="line.224"></a>
<FONT color="green">225</FONT>            }<a name="line.225"></a>
<FONT color="green">226</FONT>            return result;<a name="line.226"></a>
<FONT color="green">227</FONT>        }<a name="line.227"></a>
<FONT color="green">228</FONT>    <a name="line.228"></a>
<FONT color="green">229</FONT>        /**<a name="line.229"></a>
<FONT color="green">230</FONT>         * Returns the key for a row.<a name="line.230"></a>
<FONT color="green">231</FONT>         *<a name="line.231"></a>
<FONT color="green">232</FONT>         * @param index  the row index (zero-based).<a name="line.232"></a>
<FONT color="green">233</FONT>         *<a name="line.233"></a>
<FONT color="green">234</FONT>         * @return The key.<a name="line.234"></a>
<FONT color="green">235</FONT>         */<a name="line.235"></a>
<FONT color="green">236</FONT>        public Comparable getRowKey(int index) {<a name="line.236"></a>
<FONT color="green">237</FONT>            TaskSeries series = (TaskSeries) this.data.get(index);<a name="line.237"></a>
<FONT color="green">238</FONT>            return series.getKey();<a name="line.238"></a>
<FONT color="green">239</FONT>        }<a name="line.239"></a>
<FONT color="green">240</FONT>    <a name="line.240"></a>
<FONT color="green">241</FONT>        /**<a name="line.241"></a>
<FONT color="green">242</FONT>         * Adds a series to the dataset and sends a <a name="line.242"></a>
<FONT color="green">243</FONT>         * {@link org.jfree.data.general.DatasetChangeEvent} to all registered <a name="line.243"></a>
<FONT color="green">244</FONT>         * listeners.<a name="line.244"></a>
<FONT color="green">245</FONT>         *<a name="line.245"></a>
<FONT color="green">246</FONT>         * @param series  the series (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.246"></a>
<FONT color="green">247</FONT>         */<a name="line.247"></a>
<FONT color="green">248</FONT>        public void add(TaskSeries series) {<a name="line.248"></a>
<FONT color="green">249</FONT>            if (series == null) {<a name="line.249"></a>
<FONT color="green">250</FONT>                throw new IllegalArgumentException("Null 'series' argument.");<a name="line.250"></a>
<FONT color="green">251</FONT>            }<a name="line.251"></a>
<FONT color="green">252</FONT>            this.data.add(series);<a name="line.252"></a>
<FONT color="green">253</FONT>            series.addChangeListener(this);<a name="line.253"></a>
<FONT color="green">254</FONT>    <a name="line.254"></a>
<FONT color="green">255</FONT>            // look for any keys that we don't already know about...<a name="line.255"></a>
<FONT color="green">256</FONT>            Iterator iterator = series.getTasks().iterator();<a name="line.256"></a>
<FONT color="green">257</FONT>            while (iterator.hasNext()) {<a name="line.257"></a>
<FONT color="green">258</FONT>                Task task = (Task) iterator.next();<a name="line.258"></a>
<FONT color="green">259</FONT>                String key = task.getDescription();<a name="line.259"></a>
<FONT color="green">260</FONT>                int index = this.keys.indexOf(key);<a name="line.260"></a>
<FONT color="green">261</FONT>                if (index &lt; 0) {<a name="line.261"></a>
<FONT color="green">262</FONT>                    this.keys.add(key);<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>            fireDatasetChanged();<a name="line.265"></a>
<FONT color="green">266</FONT>        }<a name="line.266"></a>
<FONT color="green">267</FONT>    <a name="line.267"></a>
<FONT color="green">268</FONT>        /**<a name="line.268"></a>
<FONT color="green">269</FONT>         * Removes a series from the collection and sends <a name="line.269"></a>
<FONT color="green">270</FONT>         * a {@link org.jfree.data.general.DatasetChangeEvent}<a name="line.270"></a>
<FONT color="green">271</FONT>         * to all registered listeners.<a name="line.271"></a>
<FONT color="green">272</FONT>         *<a name="line.272"></a>
<FONT color="green">273</FONT>         * @param series  the series.<a name="line.273"></a>
<FONT color="green">274</FONT>         */<a name="line.274"></a>
<FONT color="green">275</FONT>        public void remove(TaskSeries series) {<a name="line.275"></a>
<FONT color="green">276</FONT>            if (series == null) {<a name="line.276"></a>
<FONT color="green">277</FONT>                throw new IllegalArgumentException("Null 'series' argument.");<a name="line.277"></a>
<FONT color="green">278</FONT>            }<a name="line.278"></a>
<FONT color="green">279</FONT>            if (this.data.contains(series)) {<a name="line.279"></a>
<FONT color="green">280</FONT>                series.removeChangeListener(this);<a name="line.280"></a>
<FONT color="green">281</FONT>                this.data.remove(series);<a name="line.281"></a>
<FONT color="green">282</FONT>                fireDatasetChanged();<a name="line.282"></a>
<FONT color="green">283</FONT>            }<a name="line.283"></a>
<FONT color="green">284</FONT>        }<a name="line.284"></a>
<FONT color="green">285</FONT>    <a name="line.285"></a>
<FONT color="green">286</FONT>        /**<a name="line.286"></a>
<FONT color="green">287</FONT>         * Removes a series from the collection and sends <a name="line.287"></a>
<FONT color="green">288</FONT>         * a {@link org.jfree.data.general.DatasetChangeEvent}<a name="line.288"></a>
<FONT color="green">289</FONT>         * to all registered listeners.<a name="line.289"></a>
<FONT color="green">290</FONT>         *<a name="line.290"></a>
<FONT color="green">291</FONT>         * @param series  the series (zero based index).<a name="line.291"></a>
<FONT color="green">292</FONT>         */<a name="line.292"></a>
<FONT color="green">293</FONT>        public void remove(int series) {<a name="line.293"></a>
<FONT color="green">294</FONT>            if ((series &lt; 0) || (series &gt; getSeriesCount())) {<a name="line.294"></a>
<FONT color="green">295</FONT>                throw new IllegalArgumentException(<a name="line.295"></a>
<FONT color="green">296</FONT>                    "TaskSeriesCollection.remove(): index outside valid range.");<a name="line.296"></a>
<FONT color="green">297</FONT>            }<a name="line.297"></a>
<FONT color="green">298</FONT>    <a name="line.298"></a>
<FONT color="green">299</FONT>            // fetch the series, remove the change listener, then remove the series.<a name="line.299"></a>
<FONT color="green">300</FONT>            TaskSeries ts = (TaskSeries) this.data.get(series);<a name="line.300"></a>
<FONT color="green">301</FONT>            ts.removeChangeListener(this);<a name="line.301"></a>
<FONT color="green">302</FONT>            this.data.remove(series);<a name="line.302"></a>
<FONT color="green">303</FONT>            fireDatasetChanged();<a name="line.303"></a>
<FONT color="green">304</FONT>    <a name="line.304"></a>
<FONT color="green">305</FONT>        }<a name="line.305"></a>
<FONT color="green">306</FONT>    <a name="line.306"></a>
<FONT color="green">307</FONT>        /**<a name="line.307"></a>
<FONT color="green">308</FONT>         * Removes all the series from the collection and sends <a name="line.308"></a>
<FONT color="green">309</FONT>         * a {@link org.jfree.data.general.DatasetChangeEvent}<a name="line.309"></a>
<FONT color="green">310</FONT>         * to all registered listeners.<a name="line.310"></a>
<FONT color="green">311</FONT>         */<a name="line.311"></a>
<FONT color="green">312</FONT>        public void removeAll() {<a name="line.312"></a>
<FONT color="green">313</FONT>    <a name="line.313"></a>
<FONT color="green">314</FONT>            // deregister the collection as a change listener to each series in <a name="line.314"></a>
<FONT color="green">315</FONT>            // the collection.<a name="line.315"></a>
<FONT color="green">316</FONT>            Iterator iterator = this.data.iterator();<a name="line.316"></a>
<FONT color="green">317</FONT>            while (iterator.hasNext()) {<a name="line.317"></a>
<FONT color="green">318</FONT>                TaskSeries series = (TaskSeries) iterator.next();<a name="line.318"></a>
<FONT color="green">319</FONT>                series.removeChangeListener(this);<a name="line.319"></a>
<FONT color="green">320</FONT>            }<a name="line.320"></a>
<FONT color="green">321</FONT>    <a name="line.321"></a>
<FONT color="green">322</FONT>            // remove all the series from the collection and notify listeners.<a name="line.322"></a>
<FONT color="green">323</FONT>            this.data.clear();<a name="line.323"></a>
<FONT color="green">324</FONT>            fireDatasetChanged();<a name="line.324"></a>
<FONT color="green">325</FONT>    <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>        /**<a name="line.328"></a>
<FONT color="green">329</FONT>         * Returns the value for an item.<a name="line.329"></a>
<FONT color="green">330</FONT>         *<a name="line.330"></a>
<FONT color="green">331</FONT>         * @param rowKey  the row key.<a name="line.331"></a>
<FONT color="green">332</FONT>         * @param columnKey  the column key.<a name="line.332"></a>
<FONT color="green">333</FONT>         *<a name="line.333"></a>
<FONT color="green">334</FONT>         * @return The item value.<a name="line.334"></a>
<FONT color="green">335</FONT>         */<a name="line.335"></a>
<FONT color="green">336</FONT>        public Number getValue(Comparable rowKey, Comparable columnKey) {<a name="line.336"></a>
<FONT color="green">337</FONT>            return getStartValue(rowKey, columnKey);<a name="line.337"></a>
<FONT color="green">338</FONT>        }<a name="line.338"></a>
<FONT color="green">339</FONT>    <a name="line.339"></a>
<FONT color="green">340</FONT>        /**<a name="line.340"></a>
<FONT color="green">341</FONT>         * Returns the value for a task.<a name="line.341"></a>
<FONT color="green">342</FONT>         *<a name="line.342"></a>
<FONT color="green">343</FONT>         * @param row  the row index (zero-based).<a name="line.343"></a>
<FONT color="green">344</FONT>         * @param column  the column index (zero-based).<a name="line.344"></a>
<FONT color="green">345</FONT>         *<a name="line.345"></a>
<FONT color="green">346</FONT>         * @return The start value.<a name="line.346"></a>
<FONT color="green">347</FONT>         */<a name="line.347"></a>
<FONT color="green">348</FONT>        public Number getValue(int row, int column) {<a name="line.348"></a>
<FONT color="green">349</FONT>            return getStartValue(row, column);<a name="line.349"></a>
<FONT color="green">350</FONT>        }<a name="line.350"></a>
<FONT color="green">351</FONT>    <a name="line.351"></a>
<FONT color="green">352</FONT>        /**<a name="line.352"></a>
<FONT color="green">353</FONT>         * Returns the start value for a task.  This is a date/time value, measured<a name="line.353"></a>
<FONT color="green">354</FONT>         * in milliseconds since 1-Jan-1970.<a name="line.354"></a>
<FONT color="green">355</FONT>         *<a name="line.355"></a>
<FONT color="green">356</FONT>         * @param rowKey  the series.<a name="line.356"></a>
<FONT color="green">357</FONT>         * @param columnKey  the category.<a name="line.357"></a>
<FONT color="green">358</FONT>         *<a name="line.358"></a>
<FONT color="green">359</FONT>         * @return The start value (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.359"></a>
<FONT color="green">360</FONT>         */<a name="line.360"></a>
<FONT color="green">361</FONT>        public Number getStartValue(Comparable rowKey, Comparable columnKey) {<a name="line.361"></a>
<FONT color="green">362</FONT>            Number result = null;<a name="line.362"></a>
<FONT color="green">363</FONT>            int row = getRowIndex(rowKey);<a name="line.363"></a>