minmaxcategoryrenderer.html

jfreechart最新源代码

<FONT color="green">290</FONT>    <a name="line.290"></a>
<FONT color="green">291</FONT>        /**<a name="line.291"></a>
<FONT color="green">292</FONT>         * Sets the icon displayed for the minimum value data item within each<a name="line.292"></a>
<FONT color="green">293</FONT>         * category and sends a {@link RendererChangeEvent} to all registered<a name="line.293"></a>
<FONT color="green">294</FONT>         * listeners.<a name="line.294"></a>
<FONT color="green">295</FONT>         *<a name="line.295"></a>
<FONT color="green">296</FONT>         * @param icon  the icon (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.296"></a>
<FONT color="green">297</FONT>         * <a name="line.297"></a>
<FONT color="green">298</FONT>         * @see #getMinIcon()<a name="line.298"></a>
<FONT color="green">299</FONT>         */<a name="line.299"></a>
<FONT color="green">300</FONT>        public void setMinIcon(Icon icon) {<a name="line.300"></a>
<FONT color="green">301</FONT>            if (icon == null) {<a name="line.301"></a>
<FONT color="green">302</FONT>                throw new IllegalArgumentException("Null 'icon' argument.");<a name="line.302"></a>
<FONT color="green">303</FONT>            }<a name="line.303"></a>
<FONT color="green">304</FONT>            this.minIcon = icon;<a name="line.304"></a>
<FONT color="green">305</FONT>            notifyListeners(new RendererChangeEvent(this));<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>         * Draw a single data item.<a name="line.309"></a>
<FONT color="green">310</FONT>         *<a name="line.310"></a>
<FONT color="green">311</FONT>         * @param g2  the graphics device.<a name="line.311"></a>
<FONT color="green">312</FONT>         * @param state  the renderer state.<a name="line.312"></a>
<FONT color="green">313</FONT>         * @param dataArea  the area in which the data is drawn.<a name="line.313"></a>
<FONT color="green">314</FONT>         * @param plot  the plot.<a name="line.314"></a>
<FONT color="green">315</FONT>         * @param domainAxis  the domain axis.<a name="line.315"></a>
<FONT color="green">316</FONT>         * @param rangeAxis  the range axis.<a name="line.316"></a>
<FONT color="green">317</FONT>         * @param dataset  the dataset.<a name="line.317"></a>
<FONT color="green">318</FONT>         * @param row  the row index (zero-based).<a name="line.318"></a>
<FONT color="green">319</FONT>         * @param column  the column index (zero-based).<a name="line.319"></a>
<FONT color="green">320</FONT>         * @param pass  the pass index.<a name="line.320"></a>
<FONT color="green">321</FONT>         */<a name="line.321"></a>
<FONT color="green">322</FONT>        public void drawItem(Graphics2D g2, CategoryItemRendererState state,<a name="line.322"></a>
<FONT color="green">323</FONT>                Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis,<a name="line.323"></a>
<FONT color="green">324</FONT>                ValueAxis rangeAxis, CategoryDataset dataset, int row, int column,<a name="line.324"></a>
<FONT color="green">325</FONT>                int pass) {<a name="line.325"></a>
<FONT color="green">326</FONT>    <a name="line.326"></a>
<FONT color="green">327</FONT>            // first check the number we are plotting...<a name="line.327"></a>
<FONT color="green">328</FONT>            Number value = dataset.getValue(row, column);<a name="line.328"></a>
<FONT color="green">329</FONT>            if (value != null) {<a name="line.329"></a>
<FONT color="green">330</FONT>                // current data point...<a name="line.330"></a>
<FONT color="green">331</FONT>                double x1 = domainAxis.getCategoryMiddle(<a name="line.331"></a>
<FONT color="green">332</FONT>                    column, getColumnCount(), dataArea, plot.getDomainAxisEdge());<a name="line.332"></a>
<FONT color="green">333</FONT>                double y1 = rangeAxis.valueToJava2D(<a name="line.333"></a>
<FONT color="green">334</FONT>                    value.doubleValue(), dataArea, plot.getRangeAxisEdge());<a name="line.334"></a>
<FONT color="green">335</FONT>                g2.setPaint(getItemPaint(row, column));<a name="line.335"></a>
<FONT color="green">336</FONT>                g2.setStroke(getItemStroke(row, column));<a name="line.336"></a>
<FONT color="green">337</FONT>                Shape shape = null;<a name="line.337"></a>
<FONT color="green">338</FONT>                shape = new Rectangle2D.Double(x1 - 4, y1 - 4, 8.0, 8.0);<a name="line.338"></a>
<FONT color="green">339</FONT>                this.objectIcon.paintIcon(null, g2, (int) x1, (int) y1);<a name="line.339"></a>
<FONT color="green">340</FONT>                if (this.lastCategory == column) {<a name="line.340"></a>
<FONT color="green">341</FONT>                    if (this.min &gt; value.doubleValue()) {<a name="line.341"></a>
<FONT color="green">342</FONT>                        this.min = value.doubleValue();<a name="line.342"></a>
<FONT color="green">343</FONT>                    }<a name="line.343"></a>
<FONT color="green">344</FONT>                    if (this.max &lt; value.doubleValue()) {<a name="line.344"></a>
<FONT color="green">345</FONT>                        this.max = value.doubleValue();<a name="line.345"></a>
<FONT color="green">346</FONT>                    }<a name="line.346"></a>
<FONT color="green">347</FONT>                    if (dataset.getRowCount() - 1 == row) {<a name="line.347"></a>
<FONT color="green">348</FONT>                        g2.setPaint(this.groupPaint);<a name="line.348"></a>
<FONT color="green">349</FONT>                        g2.setStroke(this.groupStroke);<a name="line.349"></a>
<FONT color="green">350</FONT>                        double minY = rangeAxis.valueToJava2D(this.min, dataArea, <a name="line.350"></a>
<FONT color="green">351</FONT>                                plot.getRangeAxisEdge());<a name="line.351"></a>
<FONT color="green">352</FONT>                        double maxY = rangeAxis.valueToJava2D(this.max, dataArea, <a name="line.352"></a>
<FONT color="green">353</FONT>                                plot.getRangeAxisEdge());<a name="line.353"></a>
<FONT color="green">354</FONT>                        g2.draw(new Line2D.Double(x1, minY, x1, maxY));<a name="line.354"></a>
<FONT color="green">355</FONT>                        this.minIcon.paintIcon(null, g2, (int) x1, (int) minY);<a name="line.355"></a>
<FONT color="green">356</FONT>                        this.maxIcon.paintIcon(null, g2, (int) x1, (int) maxY);<a name="line.356"></a>
<FONT color="green">357</FONT>                    }<a name="line.357"></a>
<FONT color="green">358</FONT>                }<a name="line.358"></a>
<FONT color="green">359</FONT>                else {  // reset the min and max<a name="line.359"></a>
<FONT color="green">360</FONT>                    this.lastCategory = column;<a name="line.360"></a>
<FONT color="green">361</FONT>                    this.min = value.doubleValue();<a name="line.361"></a>
<FONT color="green">362</FONT>                    this.max = value.doubleValue();<a name="line.362"></a>
<FONT color="green">363</FONT>                }<a name="line.363"></a>
<FONT color="green">364</FONT>                // connect to the previous point<a name="line.364"></a>
<FONT color="green">365</FONT>                if (this.plotLines) {<a name="line.365"></a>
<FONT color="green">366</FONT>                    if (column != 0) {<a name="line.366"></a>
<FONT color="green">367</FONT>                        Number previousValue = dataset.getValue(row, column - 1);<a name="line.367"></a>
<FONT color="green">368</FONT>                        if (previousValue != null) {<a name="line.368"></a>
<FONT color="green">369</FONT>                            // previous data point...<a name="line.369"></a>
<FONT color="green">370</FONT>                            double previous = previousValue.doubleValue();<a name="line.370"></a>
<FONT color="green">371</FONT>                            double x0 = domainAxis.getCategoryMiddle(<a name="line.371"></a>
<FONT color="green">372</FONT>                                column - 1, getColumnCount(), dataArea,<a name="line.372"></a>
<FONT color="green">373</FONT>                                plot.getDomainAxisEdge());<a name="line.373"></a>
<FONT color="green">374</FONT>                            double y0 = rangeAxis.valueToJava2D(<a name="line.374"></a>
<FONT color="green">375</FONT>                                previous, dataArea, plot.getRangeAxisEdge());<a name="line.375"></a>
<FONT color="green">376</FONT>                            g2.setPaint(getItemPaint(row, column));<a name="line.376"></a>
<FONT color="green">377</FONT>                            g2.setStroke(getItemStroke(row, column));<a name="line.377"></a>
<FONT color="green">378</FONT>                            Line2D line = new Line2D.Double(x0, y0, x1, y1);<a name="line.378"></a>
<FONT color="green">379</FONT>                            g2.draw(line);<a name="line.379"></a>
<FONT color="green">380</FONT>                        }<a name="line.380"></a>
<FONT color="green">381</FONT>                    }<a name="line.381"></a>
<FONT color="green">382</FONT>                }<a name="line.382"></a>
<FONT color="green">383</FONT>    <a name="line.383"></a>
<FONT color="green">384</FONT>                // collect entity and tool tip information...<a name="line.384"></a>
<FONT color="green">385</FONT>                if (state.getInfo() != null) {<a name="line.385"></a>
<FONT color="green">386</FONT>                    EntityCollection entities = state.getEntityCollection();<a name="line.386"></a>
<FONT color="green">387</FONT>                    if (entities != null &amp;&amp; shape != null) {<a name="line.387"></a>
<FONT color="green">388</FONT>                        String tip = null;<a name="line.388"></a>
<FONT color="green">389</FONT>                        CategoryToolTipGenerator tipster <a name="line.389"></a>
<FONT color="green">390</FONT>                            = getToolTipGenerator(row, column);<a name="line.390"></a>
<FONT color="green">391</FONT>                        if (tipster != null) {<a name="line.391"></a>
<FONT color="green">392</FONT>                            tip = tipster.generateToolTip(dataset, row, column);<a name="line.392"></a>
<FONT color="green">393</FONT>                        }<a name="line.393"></a>
<FONT color="green">394</FONT>                        CategoryItemEntity entity = new CategoryItemEntity(<a name="line.394"></a>
<FONT color="green">395</FONT>                            shape, tip, null, dataset, row, <a name="line.395"></a>
<FONT color="green">396</FONT>                            dataset.getColumnKey(column), column);<a name="line.396"></a>
<FONT color="green">397</FONT>                        entities.add(entity);<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>        }<a name="line.401"></a>
<FONT color="green">402</FONT>    <a name="line.402"></a>
<FONT color="green">403</FONT>        /**<a name="line.403"></a>
<FONT color="green">404</FONT>         * Returns an icon.<a name="line.404"></a>
<FONT color="green">405</FONT>         *<a name="line.405"></a>
<FONT color="green">406</FONT>         * @param shape  the shape.<a name="line.406"></a>
<FONT color="green">407</FONT>         * @param fillPaint  the fill paint.<a name="line.407"></a>
<FONT color="green">408</FONT>         * @param outlinePaint  the outline paint.<a name="line.408"></a>
<FONT color="green">409</FONT>         *<a name="line.409"></a>
<FONT color="green">410</FONT>         * @return The icon.<a name="line.410"></a>
<FONT color="green">411</FONT>         */<a name="line.411"></a>
<FONT color="green">412</FONT>        private Icon getIcon(Shape shape, final Paint fillPaint, <a name="line.412"></a>
<FONT color="green">413</FONT>                            final Paint outlinePaint) {<a name="line.413"></a>
<FONT color="green">414</FONT>    <a name="line.414"></a>
<FONT color="green">415</FONT>          final int width = shape.getBounds().width;<a name="line.415"></a>
<FONT color="green">416</FONT>          final int height = shape.getBounds().height;<a name="line.416"></a>
<FONT color="green">417</FONT>          final GeneralPath path = new GeneralPath(shape);<a name="line.417"></a>
<FONT color="green">418</FONT>          return new Icon() {<a name="line.418"></a>
<FONT color="green">419</FONT>              public void paintIcon(Component c, Graphics g, int x, int y) {<a name="line.419"></a>
<FONT color="green">420</FONT>                  Graphics2D g2 = (Graphics2D) g;<a name="line.420"></a>
<FONT color="green">421</FONT>                  path.transform(AffineTransform.getTranslateInstance(x, y));<a name="line.421"></a>
<FONT color="green">422</FONT>                  if (fillPaint != null) {<a name="line.422"></a>
<FONT color="green">423</FONT>                      g2.setPaint(fillPaint);<a name="line.423"></a>
<FONT color="green">424</FONT>                      g2.fill(path);<a name="line.424"></a>
<FONT color="green">425</FONT>                  }<a name="line.425"></a>
<FONT color="green">426</FONT>                  if (outlinePaint != null) {<a name="line.426"></a>
<FONT color="green">427</FONT>                      g2.setPaint(outlinePaint);<a name="line.427"></a>
<FONT color="green">428</FONT>                      g2.draw(path);<a name="line.428"></a>
<FONT color="green">429</FONT>                  }<a name="line.429"></a>
<FONT color="green">430</FONT>                  path.transform(AffineTransform.getTranslateInstance(-x, -y));<a name="line.430"></a>
<FONT color="green">431</FONT>            }<a name="line.431"></a>
<FONT color="green">432</FONT>    <a name="line.432"></a>
<FONT color="green">433</FONT>            public int getIconWidth() {<a name="line.433"></a>
<FONT color="green">434</FONT>                return width;<a name="line.434"></a>
<FONT color="green">435</FONT>            }<a name="line.435"></a>