multiplepieplot.html

jfreechart最新源代码

<FONT color="green">328</FONT>                         Point2D anchor,<a name="line.328"></a>
<FONT color="green">329</FONT>                         PlotState parentState,<a name="line.329"></a>
<FONT color="green">330</FONT>                         PlotRenderingInfo info) {<a name="line.330"></a>
<FONT color="green">331</FONT>            <a name="line.331"></a>
<FONT color="green">332</FONT>           <a name="line.332"></a>
<FONT color="green">333</FONT>            // adjust the drawing area for the plot insets (if any)...<a name="line.333"></a>
<FONT color="green">334</FONT>            RectangleInsets insets = getInsets();<a name="line.334"></a>
<FONT color="green">335</FONT>            insets.trim(area);<a name="line.335"></a>
<FONT color="green">336</FONT>            drawBackground(g2, area);<a name="line.336"></a>
<FONT color="green">337</FONT>            drawOutline(g2, area);<a name="line.337"></a>
<FONT color="green">338</FONT>            <a name="line.338"></a>
<FONT color="green">339</FONT>            // check that there is some data to display...<a name="line.339"></a>
<FONT color="green">340</FONT>            if (DatasetUtilities.isEmptyOrNull(this.dataset)) {<a name="line.340"></a>
<FONT color="green">341</FONT>                drawNoDataMessage(g2, area);<a name="line.341"></a>
<FONT color="green">342</FONT>                return;<a name="line.342"></a>
<FONT color="green">343</FONT>            }<a name="line.343"></a>
<FONT color="green">344</FONT>    <a name="line.344"></a>
<FONT color="green">345</FONT>            int pieCount = 0;<a name="line.345"></a>
<FONT color="green">346</FONT>            if (this.dataExtractOrder == TableOrder.BY_ROW) {<a name="line.346"></a>
<FONT color="green">347</FONT>                pieCount = this.dataset.getRowCount();<a name="line.347"></a>
<FONT color="green">348</FONT>            }<a name="line.348"></a>
<FONT color="green">349</FONT>            else {<a name="line.349"></a>
<FONT color="green">350</FONT>                pieCount = this.dataset.getColumnCount();<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>            // the columns variable is always &gt;= rows<a name="line.353"></a>
<FONT color="green">354</FONT>            int displayCols = (int) Math.ceil(Math.sqrt(pieCount));<a name="line.354"></a>
<FONT color="green">355</FONT>            int displayRows <a name="line.355"></a>
<FONT color="green">356</FONT>                = (int) Math.ceil((double) pieCount / (double) displayCols);<a name="line.356"></a>
<FONT color="green">357</FONT>    <a name="line.357"></a>
<FONT color="green">358</FONT>            // swap rows and columns to match plotArea shape<a name="line.358"></a>
<FONT color="green">359</FONT>            if (displayCols &gt; displayRows &amp;&amp; area.getWidth() &lt; area.getHeight()) {<a name="line.359"></a>
<FONT color="green">360</FONT>                int temp = displayCols;<a name="line.360"></a>
<FONT color="green">361</FONT>                displayCols = displayRows;<a name="line.361"></a>
<FONT color="green">362</FONT>                displayRows = temp;<a name="line.362"></a>
<FONT color="green">363</FONT>            }<a name="line.363"></a>
<FONT color="green">364</FONT>    <a name="line.364"></a>
<FONT color="green">365</FONT>            prefetchSectionPaints();<a name="line.365"></a>
<FONT color="green">366</FONT>            <a name="line.366"></a>
<FONT color="green">367</FONT>            int x = (int) area.getX();<a name="line.367"></a>
<FONT color="green">368</FONT>            int y = (int) area.getY();<a name="line.368"></a>
<FONT color="green">369</FONT>            int width = ((int) area.getWidth()) / displayCols;<a name="line.369"></a>
<FONT color="green">370</FONT>            int height = ((int) area.getHeight()) / displayRows;<a name="line.370"></a>
<FONT color="green">371</FONT>            int row = 0;<a name="line.371"></a>
<FONT color="green">372</FONT>            int column = 0;<a name="line.372"></a>
<FONT color="green">373</FONT>            int diff = (displayRows * displayCols) - pieCount;<a name="line.373"></a>
<FONT color="green">374</FONT>            int xoffset = 0;<a name="line.374"></a>
<FONT color="green">375</FONT>            Rectangle rect = new Rectangle();<a name="line.375"></a>
<FONT color="green">376</FONT>    <a name="line.376"></a>
<FONT color="green">377</FONT>            for (int pieIndex = 0; pieIndex &lt; pieCount; pieIndex++) {<a name="line.377"></a>
<FONT color="green">378</FONT>                rect.setBounds(x + xoffset + (width * column), y + (height * row), <a name="line.378"></a>
<FONT color="green">379</FONT>                        width, height);<a name="line.379"></a>
<FONT color="green">380</FONT>    <a name="line.380"></a>
<FONT color="green">381</FONT>                String title = null;<a name="line.381"></a>
<FONT color="green">382</FONT>                if (this.dataExtractOrder == TableOrder.BY_ROW) {<a name="line.382"></a>
<FONT color="green">383</FONT>                    title = this.dataset.getRowKey(pieIndex).toString();<a name="line.383"></a>
<FONT color="green">384</FONT>                }<a name="line.384"></a>
<FONT color="green">385</FONT>                else {<a name="line.385"></a>
<FONT color="green">386</FONT>                    title = this.dataset.getColumnKey(pieIndex).toString();<a name="line.386"></a>
<FONT color="green">387</FONT>                }<a name="line.387"></a>
<FONT color="green">388</FONT>                this.pieChart.setTitle(title);<a name="line.388"></a>
<FONT color="green">389</FONT>                <a name="line.389"></a>
<FONT color="green">390</FONT>                PieDataset piedataset = null;<a name="line.390"></a>
<FONT color="green">391</FONT>                PieDataset dd = new CategoryToPieDataset(this.dataset, <a name="line.391"></a>
<FONT color="green">392</FONT>                        this.dataExtractOrder, pieIndex);<a name="line.392"></a>
<FONT color="green">393</FONT>                if (this.limit &gt; 0.0) {<a name="line.393"></a>
<FONT color="green">394</FONT>                    piedataset = DatasetUtilities.createConsolidatedPieDataset(<a name="line.394"></a>
<FONT color="green">395</FONT>                            dd, this.aggregatedItemsKey, this.limit);<a name="line.395"></a>
<FONT color="green">396</FONT>                }<a name="line.396"></a>
<FONT color="green">397</FONT>                else {<a name="line.397"></a>
<FONT color="green">398</FONT>                    piedataset = dd;<a name="line.398"></a>
<FONT color="green">399</FONT>                }<a name="line.399"></a>
<FONT color="green">400</FONT>                PiePlot piePlot = (PiePlot) this.pieChart.getPlot();<a name="line.400"></a>
<FONT color="green">401</FONT>                piePlot.setDataset(piedataset);<a name="line.401"></a>
<FONT color="green">402</FONT>                piePlot.setPieIndex(pieIndex);<a name="line.402"></a>
<FONT color="green">403</FONT>                <a name="line.403"></a>
<FONT color="green">404</FONT>                // update the section colors to match the global colors...<a name="line.404"></a>
<FONT color="green">405</FONT>                for (int i = 0; i &lt; piedataset.getItemCount(); i++) {<a name="line.405"></a>
<FONT color="green">406</FONT>                    Comparable key = piedataset.getKey(i);<a name="line.406"></a>
<FONT color="green">407</FONT>                    Paint p;<a name="line.407"></a>
<FONT color="green">408</FONT>                    if (key.equals(this.aggregatedItemsKey)) {<a name="line.408"></a>
<FONT color="green">409</FONT>                        p = this.aggregatedItemsPaint;<a name="line.409"></a>
<FONT color="green">410</FONT>                    }<a name="line.410"></a>
<FONT color="green">411</FONT>                    else {<a name="line.411"></a>
<FONT color="green">412</FONT>                        p = (Paint) this.sectionPaints.get(key);<a name="line.412"></a>
<FONT color="green">413</FONT>                    }<a name="line.413"></a>
<FONT color="green">414</FONT>                    piePlot.setSectionPaint(i, p);<a name="line.414"></a>
<FONT color="green">415</FONT>                }<a name="line.415"></a>
<FONT color="green">416</FONT>                <a name="line.416"></a>
<FONT color="green">417</FONT>                ChartRenderingInfo subinfo = null;<a name="line.417"></a>
<FONT color="green">418</FONT>                if (info != null) {<a name="line.418"></a>
<FONT color="green">419</FONT>                    subinfo = new ChartRenderingInfo();<a name="line.419"></a>
<FONT color="green">420</FONT>                }<a name="line.420"></a>
<FONT color="green">421</FONT>                this.pieChart.draw(g2, rect, subinfo);<a name="line.421"></a>
<FONT color="green">422</FONT>                if (info != null) {<a name="line.422"></a>
<FONT color="green">423</FONT>                    info.getOwner().getEntityCollection().addAll(<a name="line.423"></a>
<FONT color="green">424</FONT>                            subinfo.getEntityCollection());<a name="line.424"></a>
<FONT color="green">425</FONT>                    info.addSubplotInfo(subinfo.getPlotInfo());<a name="line.425"></a>
<FONT color="green">426</FONT>                }<a name="line.426"></a>
<FONT color="green">427</FONT>                <a name="line.427"></a>
<FONT color="green">428</FONT>                ++column;<a name="line.428"></a>
<FONT color="green">429</FONT>                if (column == displayCols) {<a name="line.429"></a>
<FONT color="green">430</FONT>                    column = 0;<a name="line.430"></a>
<FONT color="green">431</FONT>                    ++row;<a name="line.431"></a>
<FONT color="green">432</FONT>    <a name="line.432"></a>
<FONT color="green">433</FONT>                    if (row == displayRows - 1 &amp;&amp; diff != 0) {<a name="line.433"></a>
<FONT color="green">434</FONT>                        xoffset = (diff * width) / 2;<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>            }<a name="line.437"></a>
<FONT color="green">438</FONT>    <a name="line.438"></a>
<FONT color="green">439</FONT>        }<a name="line.439"></a>
<FONT color="green">440</FONT>        <a name="line.440"></a>
<FONT color="green">441</FONT>        /**<a name="line.441"></a>
<FONT color="green">442</FONT>         * For each key in the dataset, check the &lt;code&gt;sectionPaints&lt;/code&gt;<a name="line.442"></a>
<FONT color="green">443</FONT>         * cache to see if a paint is associated with that key and, if not, <a name="line.443"></a>
<FONT color="green">444</FONT>         * fetch one from the drawing supplier.  These colors are cached so that<a name="line.444"></a>
<FONT color="green">445</FONT>         * the legend and all the subplots use consistent colors.<a name="line.445"></a>
<FONT color="green">446</FONT>         */<a name="line.446"></a>
<FONT color="green">447</FONT>        private void prefetchSectionPaints() {<a name="line.447"></a>
<FONT color="green">448</FONT>            <a name="line.448"></a>
<FONT color="green">449</FONT>            // pre-fetch the colors for each key...this is because the subplots<a name="line.449"></a>
<FONT color="green">450</FONT>            // may not display every key, but we need the coloring to be<a name="line.450"></a>
<FONT color="green">451</FONT>            // consistent...<a name="line.451"></a>
<FONT color="green">452</FONT>            if (this.dataExtractOrder == TableOrder.BY_ROW) {<a name="line.452"></a>
<FONT color="green">453</FONT>                // column keys provide potential keys for individual pies<a name="line.453"></a>
<FONT color="green">454</FONT>                for (int c = 0; c &lt; this.dataset.getColumnCount(); c++) {<a name="line.454"></a>
<FONT color="green">455</FONT>                    Comparable key = this.dataset.getColumnKey(c);<a name="line.455"></a>
<FONT color="green">456</FONT>                    Paint p = (Paint) this.sectionPaints.get(key);<a name="line.456"></a>
<FONT color="green">457</FONT>                    if (p == null) {<a name="line.457"></a>
<FONT color="green">458</FONT>                        this.sectionPaints.put(key, <a name="line.458"></a>
<FONT color="green">459</FONT>                                this.getDrawingSupplier().getNextPaint());<a name="line.459"></a>
<FONT color="green">460</FONT>                    }<a name="line.460"></a>
<FONT color="green">461</FONT>                }<a name="line.461"></a>
<FONT color="green">462</FONT>            }<a name="line.462"></a>
<FONT color="green">463</FONT>            else {<a name="line.463"></a>
<FONT color="green">464</FONT>                // row keys provide potential keys for individual pies            <a name="line.464"></a>
<FONT color="green">465</FONT>                for (int r = 0; r &lt; this.dataset.getRowCount(); r++) {<a name="line.465"></a>
<FONT color="green">466</FONT>                    Comparable key = this.dataset.getRowKey(r);<a name="line.466"></a>
<FONT color="green">467</FONT>                    Paint p = (Paint) this.sectionPaints.get(key);<a name="line.467"></a>
<FONT color="green">468</FONT>                    if (p == null) {<a name="line.468"></a>
<FONT color="green">469</FONT>                        this.sectionPaints.put(key, <a name="line.469"></a>
<FONT color="green">470</FONT>                                this.getDrawingSupplier().getNextPaint());<a name="line.470"></a>
<FONT color="green">471</FONT>                    }<a name="line.471"></a>
<FONT color="green">472</FONT>                }<a name="line.472"></a>
<FONT color="green">473</FONT>            }<a name="line.473"></a>
<FONT color="green">474</FONT>            <a name="line.474"></a>
<FONT color="green">475</FONT>        }<a name="line.475"></a>
<FONT color="green">476</FONT>        <a name="line.476"></a>
<FONT color="green">477</FONT>        /**<a name="line.477"></a>
<FONT color="green">478</FONT>         * Returns a collection of legend items for the pie chart.<a name="line.478"></a>
<FONT color="green">479</FONT>         *<a name="line.479"></a>
<FONT color="green">480</FONT>         * @return The legend items.<a name="line.480"></a>
<FONT color="green">481</FONT>         */<a name="line.481"></a>
<FONT color="green">482</FONT>        public LegendItemCollection getLegendItems() {<a name="line.482"></a>
<FONT color="green">483</FONT>    <a name="line.483"></a>
<FONT color="green">484</FONT>            LegendItemCollection result = new LegendItemCollection();<a name="line.484"></a>
<FONT color="green">485</FONT>            <a name="line.485"></a>
<FONT color="green">486</FONT>            if (this.dataset != null) {<a name="line.486"></a>
<FONT color="green">487</FONT>                List keys = null;<a name="line.487"></a>
<FONT color="green">488</FONT>          <a name="line.488"></a>
<FONT color="green">489</FONT>                prefetchSectionPaints();<a name="line.489"></a>
<FONT color="green">490</FONT>                if (this.dataExtractOrder == TableOrder.BY_ROW) {<a name="line.490"></a>
<FONT color="green">491</FONT>                    keys = this.dataset.getColumnKeys();<a name="line.491"></a>
<FONT color="green">492</FONT>                }<a name="line.492"></a>