xyseries.html

jfreechart最新源代码

<FONT color="green">298</FONT>         * allowDuplicateXValues flag is false.<a name="line.298"></a>
<FONT color="green">299</FONT>         *<a name="line.299"></a>
<FONT color="green">300</FONT>         * @param x  the x-value (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.300"></a>
<FONT color="green">301</FONT>         * @param y  the y-value (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.301"></a>
<FONT color="green">302</FONT>         */<a name="line.302"></a>
<FONT color="green">303</FONT>        public void add(Number x, Number y) {<a name="line.303"></a>
<FONT color="green">304</FONT>            // argument checking delegated...<a name="line.304"></a>
<FONT color="green">305</FONT>            add(x, y, true);<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>        /**<a name="line.308"></a>
<FONT color="green">309</FONT>         * Adds new data to the series and, if requested, sends a <a name="line.309"></a>
<FONT color="green">310</FONT>         * {@link SeriesChangeEvent} to all registered listeners.<a name="line.310"></a>
<FONT color="green">311</FONT>         * &lt;P&gt;<a name="line.311"></a>
<FONT color="green">312</FONT>         * Throws an exception if the x-value is a duplicate AND the <a name="line.312"></a>
<FONT color="green">313</FONT>         * allowDuplicateXValues flag is false.<a name="line.313"></a>
<FONT color="green">314</FONT>         *<a name="line.314"></a>
<FONT color="green">315</FONT>         * @param x  the x-value (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.315"></a>
<FONT color="green">316</FONT>         * @param y  the y-value (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.316"></a>
<FONT color="green">317</FONT>         * @param notify  a flag the controls whether or not a <a name="line.317"></a>
<FONT color="green">318</FONT>         *                {@link SeriesChangeEvent} is sent to all registered <a name="line.318"></a>
<FONT color="green">319</FONT>         *                listeners.<a name="line.319"></a>
<FONT color="green">320</FONT>         */<a name="line.320"></a>
<FONT color="green">321</FONT>        public void add(Number x, Number y, boolean notify) {<a name="line.321"></a>
<FONT color="green">322</FONT>            // delegate argument checking to XYDataItem...<a name="line.322"></a>
<FONT color="green">323</FONT>            XYDataItem item = new XYDataItem(x, y);<a name="line.323"></a>
<FONT color="green">324</FONT>            add(item, notify);<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>         * Adds a data item to the series and, if requested, sends a <a name="line.328"></a>
<FONT color="green">329</FONT>         * {@link SeriesChangeEvent} to all registered listeners.<a name="line.329"></a>
<FONT color="green">330</FONT>         *<a name="line.330"></a>
<FONT color="green">331</FONT>         * @param item  the (x, y) item (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.331"></a>
<FONT color="green">332</FONT>         * @param notify  a flag that controls whether or not a <a name="line.332"></a>
<FONT color="green">333</FONT>         *                {@link SeriesChangeEvent} is sent to all registered <a name="line.333"></a>
<FONT color="green">334</FONT>         *                listeners.<a name="line.334"></a>
<FONT color="green">335</FONT>         */<a name="line.335"></a>
<FONT color="green">336</FONT>        public void add(XYDataItem item, boolean notify) {<a name="line.336"></a>
<FONT color="green">337</FONT>    <a name="line.337"></a>
<FONT color="green">338</FONT>            if (item == null) {<a name="line.338"></a>
<FONT color="green">339</FONT>                throw new IllegalArgumentException("Null 'item' argument.");<a name="line.339"></a>
<FONT color="green">340</FONT>            }<a name="line.340"></a>
<FONT color="green">341</FONT>    <a name="line.341"></a>
<FONT color="green">342</FONT>            if (this.autoSort) {<a name="line.342"></a>
<FONT color="green">343</FONT>                int index = Collections.binarySearch(this.data, item);<a name="line.343"></a>
<FONT color="green">344</FONT>                if (index &lt; 0) {<a name="line.344"></a>
<FONT color="green">345</FONT>                    this.data.add(-index - 1, item);<a name="line.345"></a>
<FONT color="green">346</FONT>                }<a name="line.346"></a>
<FONT color="green">347</FONT>                else {<a name="line.347"></a>
<FONT color="green">348</FONT>                    if (this.allowDuplicateXValues) {<a name="line.348"></a>
<FONT color="green">349</FONT>                        // need to make sure we are adding *after* any duplicates<a name="line.349"></a>
<FONT color="green">350</FONT>                        int size = this.data.size();<a name="line.350"></a>
<FONT color="green">351</FONT>                        while (index &lt; size <a name="line.351"></a>
<FONT color="green">352</FONT>                               &amp;&amp; item.compareTo(this.data.get(index)) == 0) {<a name="line.352"></a>
<FONT color="green">353</FONT>                            index++;<a name="line.353"></a>
<FONT color="green">354</FONT>                        }<a name="line.354"></a>
<FONT color="green">355</FONT>                        if (index &lt; this.data.size()) {<a name="line.355"></a>
<FONT color="green">356</FONT>                            this.data.add(index, item);<a name="line.356"></a>
<FONT color="green">357</FONT>                        }<a name="line.357"></a>
<FONT color="green">358</FONT>                        else {<a name="line.358"></a>
<FONT color="green">359</FONT>                            this.data.add(item);<a name="line.359"></a>
<FONT color="green">360</FONT>                        }<a name="line.360"></a>
<FONT color="green">361</FONT>                    }<a name="line.361"></a>
<FONT color="green">362</FONT>                    else {<a name="line.362"></a>
<FONT color="green">363</FONT>                        throw new SeriesException("X-value already exists.");<a name="line.363"></a>
<FONT color="green">364</FONT>                    }<a name="line.364"></a>
<FONT color="green">365</FONT>                }<a name="line.365"></a>
<FONT color="green">366</FONT>            }<a name="line.366"></a>
<FONT color="green">367</FONT>            else {<a name="line.367"></a>
<FONT color="green">368</FONT>                if (!this.allowDuplicateXValues) {<a name="line.368"></a>
<FONT color="green">369</FONT>                    // can't allow duplicate values, so we need to check whether<a name="line.369"></a>
<FONT color="green">370</FONT>                    // there is an item with the given x-value already<a name="line.370"></a>
<FONT color="green">371</FONT>                    int index = indexOf(item.getX());<a name="line.371"></a>
<FONT color="green">372</FONT>                    if (index &gt;= 0) {<a name="line.372"></a>
<FONT color="green">373</FONT>                        throw new SeriesException("X-value already exists.");      <a name="line.373"></a>
<FONT color="green">374</FONT>                    }<a name="line.374"></a>
<FONT color="green">375</FONT>                }<a name="line.375"></a>
<FONT color="green">376</FONT>                this.data.add(item);<a name="line.376"></a>
<FONT color="green">377</FONT>            }<a name="line.377"></a>
<FONT color="green">378</FONT>            if (getItemCount() &gt; this.maximumItemCount) {<a name="line.378"></a>
<FONT color="green">379</FONT>                this.data.remove(0);<a name="line.379"></a>
<FONT color="green">380</FONT>            }                    <a name="line.380"></a>
<FONT color="green">381</FONT>            if (notify) {<a name="line.381"></a>
<FONT color="green">382</FONT>                fireSeriesChanged();<a name="line.382"></a>
<FONT color="green">383</FONT>            }<a name="line.383"></a>
<FONT color="green">384</FONT>        }<a name="line.384"></a>
<FONT color="green">385</FONT>    <a name="line.385"></a>
<FONT color="green">386</FONT>        /**<a name="line.386"></a>
<FONT color="green">387</FONT>         * Deletes a range of items from the series and sends a <a name="line.387"></a>
<FONT color="green">388</FONT>         * {@link SeriesChangeEvent} to all registered listeners.<a name="line.388"></a>
<FONT color="green">389</FONT>         *<a name="line.389"></a>
<FONT color="green">390</FONT>         * @param start  the start index (zero-based).<a name="line.390"></a>
<FONT color="green">391</FONT>         * @param end  the end index (zero-based).<a name="line.391"></a>
<FONT color="green">392</FONT>         */<a name="line.392"></a>
<FONT color="green">393</FONT>        public void delete(int start, int end) {<a name="line.393"></a>
<FONT color="green">394</FONT>            for (int i = start; i &lt;= end; i++) {<a name="line.394"></a>
<FONT color="green">395</FONT>                this.data.remove(start);<a name="line.395"></a>
<FONT color="green">396</FONT>            }<a name="line.396"></a>
<FONT color="green">397</FONT>            fireSeriesChanged();<a name="line.397"></a>
<FONT color="green">398</FONT>        }<a name="line.398"></a>
<FONT color="green">399</FONT>    <a name="line.399"></a>
<FONT color="green">400</FONT>        /**<a name="line.400"></a>
<FONT color="green">401</FONT>         * Removes the item at the specified index and sends a <a name="line.401"></a>
<FONT color="green">402</FONT>         * {@link SeriesChangeEvent} to all registered listeners.<a name="line.402"></a>
<FONT color="green">403</FONT>         * <a name="line.403"></a>
<FONT color="green">404</FONT>         * @param index  the index.<a name="line.404"></a>
<FONT color="green">405</FONT>         * <a name="line.405"></a>
<FONT color="green">406</FONT>         * @return The item removed.<a name="line.406"></a>
<FONT color="green">407</FONT>         */<a name="line.407"></a>
<FONT color="green">408</FONT>        public XYDataItem remove(int index) {<a name="line.408"></a>
<FONT color="green">409</FONT>            XYDataItem result = (XYDataItem) this.data.remove(index);<a name="line.409"></a>
<FONT color="green">410</FONT>            fireSeriesChanged();<a name="line.410"></a>
<FONT color="green">411</FONT>            return result;<a name="line.411"></a>
<FONT color="green">412</FONT>        }<a name="line.412"></a>
<FONT color="green">413</FONT>        <a name="line.413"></a>
<FONT color="green">414</FONT>        /**<a name="line.414"></a>
<FONT color="green">415</FONT>         * Removes the item with the specified x-value and sends a <a name="line.415"></a>
<FONT color="green">416</FONT>         * {@link SeriesChangeEvent} to all registered listeners.<a name="line.416"></a>
<FONT color="green">417</FONT>         * <a name="line.417"></a>
<FONT color="green">418</FONT>         * @param x  the x-value.<a name="line.418"></a>
<FONT color="green">419</FONT>    <a name="line.419"></a>
<FONT color="green">420</FONT>         * @return The item removed.<a name="line.420"></a>
<FONT color="green">421</FONT>         */<a name="line.421"></a>
<FONT color="green">422</FONT>        public XYDataItem remove(Number x) {<a name="line.422"></a>
<FONT color="green">423</FONT>            return remove(indexOf(x));<a name="line.423"></a>
<FONT color="green">424</FONT>        }<a name="line.424"></a>
<FONT color="green">425</FONT>        <a name="line.425"></a>
<FONT color="green">426</FONT>        /**<a name="line.426"></a>
<FONT color="green">427</FONT>         * Removes all data items from the series.<a name="line.427"></a>
<FONT color="green">428</FONT>         */<a name="line.428"></a>
<FONT color="green">429</FONT>        public void clear() {<a name="line.429"></a>
<FONT color="green">430</FONT>            if (this.data.size() &gt; 0) {<a name="line.430"></a>
<FONT color="green">431</FONT>                this.data.clear();<a name="line.431"></a>
<FONT color="green">432</FONT>                fireSeriesChanged();<a name="line.432"></a>
<FONT color="green">433</FONT>            }<a name="line.433"></a>
<FONT color="green">434</FONT>        }<a name="line.434"></a>
<FONT color="green">435</FONT>    <a name="line.435"></a>
<FONT color="green">436</FONT>        /**<a name="line.436"></a>
<FONT color="green">437</FONT>         * Return the data item with the specified index.<a name="line.437"></a>
<FONT color="green">438</FONT>         *<a name="line.438"></a>
<FONT color="green">439</FONT>         * @param index  the index.<a name="line.439"></a>
<FONT color="green">440</FONT>         *<a name="line.440"></a>
<FONT color="green">441</FONT>         * @return The data item with the specified index.<a name="line.441"></a>
<FONT color="green">442</FONT>         */<a name="line.442"></a>
<FONT color="green">443</FONT>        public XYDataItem getDataItem(int index) {<a name="line.443"></a>
<FONT color="green">444</FONT>            return (XYDataItem) this.data.get(index);<a name="line.444"></a>
<FONT color="green">445</FONT>        }<a name="line.445"></a>
<FONT color="green">446</FONT>    <a name="line.446"></a>
<FONT color="green">447</FONT>        /**<a name="line.447"></a>