layeredbarrenderer.html

jfreechart1。0。2的api。

<FONT color="green">282</FONT>            int seriesCount = getRowCount();<a name="line.282"></a>
<FONT color="green">283</FONT>    <a name="line.283"></a>
<FONT color="green">284</FONT>            // draw the bar...<a name="line.284"></a>
<FONT color="green">285</FONT>            double shift = 0.0;<a name="line.285"></a>
<FONT color="green">286</FONT>            double rectHeight = 0.0;<a name="line.286"></a>
<FONT color="green">287</FONT>            double widthFactor = 1.0;<a name="line.287"></a>
<FONT color="green">288</FONT>            double seriesBarWidth = getSeriesBarWidth(row);<a name="line.288"></a>
<FONT color="green">289</FONT>            if (!Double.isNaN(seriesBarWidth)) {<a name="line.289"></a>
<FONT color="green">290</FONT>                widthFactor = seriesBarWidth;<a name="line.290"></a>
<FONT color="green">291</FONT>            } <a name="line.291"></a>
<FONT color="green">292</FONT>            rectHeight = widthFactor * state.getBarWidth();<a name="line.292"></a>
<FONT color="green">293</FONT>            rectY = rectY + (1 - widthFactor) * state.getBarWidth() / 2.0;<a name="line.293"></a>
<FONT color="green">294</FONT>            if (seriesCount &gt; 1) {<a name="line.294"></a>
<FONT color="green">295</FONT>                shift = rectHeight * 0.20 / (seriesCount - 1);<a name="line.295"></a>
<FONT color="green">296</FONT>            }<a name="line.296"></a>
<FONT color="green">297</FONT>    <a name="line.297"></a>
<FONT color="green">298</FONT>            Rectangle2D bar = new Rectangle2D.Double(rectX, <a name="line.298"></a>
<FONT color="green">299</FONT>                    (rectY + ((seriesCount - 1 - row) * shift)), rectWidth, <a name="line.299"></a>
<FONT color="green">300</FONT>                    (rectHeight - (seriesCount - 1 - row) * shift * 2));<a name="line.300"></a>
<FONT color="green">301</FONT>    <a name="line.301"></a>
<FONT color="green">302</FONT>            Paint itemPaint = getItemPaint(row, column);<a name="line.302"></a>
<FONT color="green">303</FONT>            GradientPaintTransformer t = getGradientPaintTransformer();<a name="line.303"></a>
<FONT color="green">304</FONT>            if (t != null &amp;&amp; itemPaint instanceof GradientPaint) {<a name="line.304"></a>
<FONT color="green">305</FONT>                itemPaint = t.transform((GradientPaint) itemPaint, bar);<a name="line.305"></a>
<FONT color="green">306</FONT>            }<a name="line.306"></a>
<FONT color="green">307</FONT>            g2.setPaint(itemPaint);<a name="line.307"></a>
<FONT color="green">308</FONT>            g2.fill(bar);<a name="line.308"></a>
<FONT color="green">309</FONT>    <a name="line.309"></a>
<FONT color="green">310</FONT>            // draw the outline...<a name="line.310"></a>
<FONT color="green">311</FONT>            if (isDrawBarOutline() <a name="line.311"></a>
<FONT color="green">312</FONT>                    &amp;&amp; state.getBarWidth() &gt; BAR_OUTLINE_WIDTH_THRESHOLD) {<a name="line.312"></a>
<FONT color="green">313</FONT>                Stroke stroke = getItemOutlineStroke(row, column);<a name="line.313"></a>
<FONT color="green">314</FONT>                Paint paint = getItemOutlinePaint(row, column);<a name="line.314"></a>
<FONT color="green">315</FONT>                if (stroke != null &amp;&amp; paint != null) {<a name="line.315"></a>
<FONT color="green">316</FONT>                    g2.setStroke(stroke);<a name="line.316"></a>
<FONT color="green">317</FONT>                    g2.setPaint(paint);<a name="line.317"></a>
<FONT color="green">318</FONT>                    g2.draw(bar);<a name="line.318"></a>
<FONT color="green">319</FONT>                }<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>            CategoryItemLabelGenerator generator <a name="line.322"></a>
<FONT color="green">323</FONT>                = getItemLabelGenerator(row, column);<a name="line.323"></a>
<FONT color="green">324</FONT>            if (generator != null &amp;&amp; isItemLabelVisible(row, column)) {<a name="line.324"></a>
<FONT color="green">325</FONT>                drawItemLabel(g2, data, row, column, plot, generator, bar, <a name="line.325"></a>
<FONT color="green">326</FONT>                        (transX1 &gt; transX2));<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>            // collect entity and tool tip information...<a name="line.329"></a>
<FONT color="green">330</FONT>            if (state.getInfo() != null) {<a name="line.330"></a>
<FONT color="green">331</FONT>                EntityCollection entities = state.getEntityCollection();<a name="line.331"></a>
<FONT color="green">332</FONT>                if (entities != null) {<a name="line.332"></a>
<FONT color="green">333</FONT>                    String tip = null;<a name="line.333"></a>
<FONT color="green">334</FONT>                    CategoryToolTipGenerator tipster <a name="line.334"></a>
<FONT color="green">335</FONT>                        = getToolTipGenerator(row, column);<a name="line.335"></a>
<FONT color="green">336</FONT>                    if (tipster != null) {<a name="line.336"></a>
<FONT color="green">337</FONT>                        tip = tipster.generateToolTip(data, row, column);<a name="line.337"></a>
<FONT color="green">338</FONT>                    }<a name="line.338"></a>
<FONT color="green">339</FONT>                    String url = null;<a name="line.339"></a>
<FONT color="green">340</FONT>                    if (getItemURLGenerator(row, column) != null) {<a name="line.340"></a>
<FONT color="green">341</FONT>                        url = getItemURLGenerator(row, column).generateURL(data, <a name="line.341"></a>
<FONT color="green">342</FONT>                                row, column);<a name="line.342"></a>
<FONT color="green">343</FONT>                    }<a name="line.343"></a>
<FONT color="green">344</FONT>                    CategoryItemEntity entity = new CategoryItemEntity(bar, tip, <a name="line.344"></a>
<FONT color="green">345</FONT>                            url, data, row, data.getColumnKey(column), column);<a name="line.345"></a>
<FONT color="green">346</FONT>                    entities.add(entity);<a name="line.346"></a>
<FONT color="green">347</FONT>                }<a name="line.347"></a>
<FONT color="green">348</FONT>            }<a name="line.348"></a>
<FONT color="green">349</FONT>        }<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>         * Draws the bar for a single (series, category) data item.<a name="line.352"></a>
<FONT color="green">353</FONT>         *<a name="line.353"></a>
<FONT color="green">354</FONT>         * @param g2  the graphics device.<a name="line.354"></a>
<FONT color="green">355</FONT>         * @param state  the renderer state.<a name="line.355"></a>
<FONT color="green">356</FONT>         * @param dataArea  the data area.<a name="line.356"></a>
<FONT color="green">357</FONT>         * @param plot  the plot.<a name="line.357"></a>
<FONT color="green">358</FONT>         * @param domainAxis  the domain axis.<a name="line.358"></a>
<FONT color="green">359</FONT>         * @param rangeAxis  the range axis.<a name="line.359"></a>
<FONT color="green">360</FONT>         * @param data  the data.<a name="line.360"></a>
<FONT color="green">361</FONT>         * @param row  the row index (zero-based).<a name="line.361"></a>
<FONT color="green">362</FONT>         * @param column  the column index (zero-based).<a name="line.362"></a>
<FONT color="green">363</FONT>         */<a name="line.363"></a>
<FONT color="green">364</FONT>        protected void drawVerticalItem(Graphics2D g2,<a name="line.364"></a>
<FONT color="green">365</FONT>                                        CategoryItemRendererState state,<a name="line.365"></a>
<FONT color="green">366</FONT>                                        Rectangle2D dataArea,<a name="line.366"></a>
<FONT color="green">367</FONT>                                        CategoryPlot plot,<a name="line.367"></a>
<FONT color="green">368</FONT>                                        CategoryAxis domainAxis,<a name="line.368"></a>
<FONT color="green">369</FONT>                                        ValueAxis rangeAxis,<a name="line.369"></a>
<FONT color="green">370</FONT>                                        CategoryDataset data,<a name="line.370"></a>
<FONT color="green">371</FONT>                                        int row,<a name="line.371"></a>
<FONT color="green">372</FONT>                                        int column) {<a name="line.372"></a>
<FONT color="green">373</FONT>    <a name="line.373"></a>
<FONT color="green">374</FONT>            // nothing is drawn for null values...<a name="line.374"></a>
<FONT color="green">375</FONT>            Number dataValue = data.getValue(row, column);<a name="line.375"></a>
<FONT color="green">376</FONT>            if (dataValue == null) {<a name="line.376"></a>
<FONT color="green">377</FONT>                return;<a name="line.377"></a>
<FONT color="green">378</FONT>            }<a name="line.378"></a>
<FONT color="green">379</FONT>    <a name="line.379"></a>
<FONT color="green">380</FONT>            // BAR X<a name="line.380"></a>
<FONT color="green">381</FONT>            double rectX = domainAxis.getCategoryMiddle(column, getColumnCount(), <a name="line.381"></a>
<FONT color="green">382</FONT>                    dataArea, plot.getDomainAxisEdge()) - state.getBarWidth() / 2.0;<a name="line.382"></a>
<FONT color="green">383</FONT>    <a name="line.383"></a>
<FONT color="green">384</FONT>            int seriesCount = getRowCount();<a name="line.384"></a>
<FONT color="green">385</FONT>    <a name="line.385"></a>
<FONT color="green">386</FONT>            // BAR Y<a name="line.386"></a>
<FONT color="green">387</FONT>            double value = dataValue.doubleValue();<a name="line.387"></a>
<FONT color="green">388</FONT>            double base = 0.0;<a name="line.388"></a>
<FONT color="green">389</FONT>            double lclip = getLowerClip();<a name="line.389"></a>
<FONT color="green">390</FONT>            double uclip = getUpperClip();<a name="line.390"></a>
<FONT color="green">391</FONT>    <a name="line.391"></a>
<FONT color="green">392</FONT>            if (uclip &lt;= 0.0) {  // cases 1, 2, 3 and 4<a name="line.392"></a>
<FONT color="green">393</FONT>                if (value &gt;= uclip) {<a name="line.393"></a>
<FONT color="green">394</FONT>                    return; // bar is not visible<a name="line.394"></a>
<FONT color="green">395</FONT>                }<a name="line.395"></a>
<FONT color="green">396</FONT>                base = uclip;<a name="line.396"></a>
<FONT color="green">397</FONT>                if (value &lt;= lclip) {<a name="line.397"></a>
<FONT color="green">398</FONT>                    value = lclip;<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>            else if (lclip &lt;= 0.0) { // cases 5, 6, 7 and 8<a name="line.401"></a>
<FONT color="green">402</FONT>                if (value &gt;= uclip) {<a name="line.402"></a>
<FONT color="green">403</FONT>                    value = uclip;<a name="line.403"></a>
<FONT color="green">404</FONT>                }<a name="line.404"></a>
<FONT color="green">405</FONT>                else {<a name="line.405"></a>
<FONT color="green">406</FONT>                    if (value &lt;= lclip) {<a name="line.406"></a>
<FONT color="green">407</FONT>                        value = lclip;<a name="line.407"></a>
<FONT color="green">408</FONT>                    }<a name="line.408"></a>
<FONT color="green">409</FONT>                }<a name="line.409"></a>
<FONT color="green">410</FONT>            }<a name="line.410"></a>
<FONT color="green">411</FONT>            else { // cases 9, 10, 11 and 12<a name="line.411"></a>
<FONT color="green">412</FONT>                if (value &lt;= lclip) {<a name="line.412"></a>
<FONT color="green">413</FONT>                    return; // bar is not visible<a name="line.413"></a>
<FONT color="green">414</FONT>                }<a name="line.414"></a>
<FONT color="green">415</FONT>                base = getLowerClip();<a name="line.415"></a>
<FONT color="green">416</FONT>                if (value &gt;= uclip) {<a name="line.416"></a>
<FONT color="green">417</FONT>                   value = uclip;<a name="line.417"></a>
<FONT color="green">418</FONT>                }<a name="line.418"></a>
<FONT color="green">419</FONT>            }<a name="line.419"></a>
<FONT color="green">420</FONT>    <a name="line.420"></a>
<FONT color="green">421</FONT>            RectangleEdge edge = plot.getRangeAxisEdge();<a name="line.421"></a>
<FONT color="green">422</FONT>            double transY1 = rangeAxis.valueToJava2D(base, dataArea, edge);<a name="line.422"></a>
<FONT color="green">423</FONT>            double transY2 = rangeAxis.valueToJava2D(value, dataArea, edge);<a name="line.423"></a>