combinedrangecategoryplot.html

jfreechart1。0。2的api。

<FONT color="green">316</FONT>        }<a name="line.316"></a>
<FONT color="green">317</FONT>    <a name="line.317"></a>
<FONT color="green">318</FONT>        /**<a name="line.318"></a>
<FONT color="green">319</FONT>         * Draws the plot on a Java 2D graphics device (such as the screen or a <a name="line.319"></a>
<FONT color="green">320</FONT>         * printer).  Will perform all the placement calculations for each <a name="line.320"></a>
<FONT color="green">321</FONT>         * sub-plots and then tell these to draw themselves.<a name="line.321"></a>
<FONT color="green">322</FONT>         *<a name="line.322"></a>
<FONT color="green">323</FONT>         * @param g2  the graphics device.<a name="line.323"></a>
<FONT color="green">324</FONT>         * @param area  the area within which the plot (including axis labels)<a name="line.324"></a>
<FONT color="green">325</FONT>         *              should be drawn.<a name="line.325"></a>
<FONT color="green">326</FONT>         * @param anchor  the anchor point (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.326"></a>
<FONT color="green">327</FONT>         * @param parentState  the parent state.<a name="line.327"></a>
<FONT color="green">328</FONT>         * @param info  collects information about the drawing (&lt;code&gt;null&lt;/code&gt; <a name="line.328"></a>
<FONT color="green">329</FONT>         *              permitted).<a name="line.329"></a>
<FONT color="green">330</FONT>         */<a name="line.330"></a>
<FONT color="green">331</FONT>        public void draw(Graphics2D g2, Rectangle2D area, Point2D anchor,<a name="line.331"></a>
<FONT color="green">332</FONT>                         PlotState parentState,<a name="line.332"></a>
<FONT color="green">333</FONT>                         PlotRenderingInfo info) {<a name="line.333"></a>
<FONT color="green">334</FONT>    <a name="line.334"></a>
<FONT color="green">335</FONT>            // set up info collection...<a name="line.335"></a>
<FONT color="green">336</FONT>            if (info != null) {<a name="line.336"></a>
<FONT color="green">337</FONT>                info.setPlotArea(area);<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>            // adjust the drawing area for plot insets (if any)...<a name="line.340"></a>
<FONT color="green">341</FONT>            RectangleInsets insets = getInsets();<a name="line.341"></a>
<FONT color="green">342</FONT>            insets.trim(area);<a name="line.342"></a>
<FONT color="green">343</FONT>    <a name="line.343"></a>
<FONT color="green">344</FONT>            // calculate the data area...<a name="line.344"></a>
<FONT color="green">345</FONT>            AxisSpace space = calculateAxisSpace(g2, area);<a name="line.345"></a>
<FONT color="green">346</FONT>            Rectangle2D dataArea = space.shrink(area, null);<a name="line.346"></a>
<FONT color="green">347</FONT>    <a name="line.347"></a>
<FONT color="green">348</FONT>            // set the width and height of non-shared axis of all sub-plots<a name="line.348"></a>
<FONT color="green">349</FONT>            setFixedDomainAxisSpaceForSubplots(space);<a name="line.349"></a>
<FONT color="green">350</FONT>    <a name="line.350"></a>
<FONT color="green">351</FONT>            // draw the shared axis<a name="line.351"></a>
<FONT color="green">352</FONT>            ValueAxis axis = getRangeAxis();<a name="line.352"></a>
<FONT color="green">353</FONT>            RectangleEdge rangeEdge = getRangeAxisEdge();<a name="line.353"></a>
<FONT color="green">354</FONT>            double cursor = RectangleEdge.coordinate(dataArea, rangeEdge);<a name="line.354"></a>
<FONT color="green">355</FONT>            AxisState state = axis.draw(<a name="line.355"></a>
<FONT color="green">356</FONT>                g2, cursor, area, dataArea, rangeEdge, info<a name="line.356"></a>
<FONT color="green">357</FONT>            );<a name="line.357"></a>
<FONT color="green">358</FONT>            if (parentState == null) {<a name="line.358"></a>
<FONT color="green">359</FONT>                parentState = new PlotState();<a name="line.359"></a>
<FONT color="green">360</FONT>            }<a name="line.360"></a>
<FONT color="green">361</FONT>            parentState.getSharedAxisStates().put(axis, state);<a name="line.361"></a>
<FONT color="green">362</FONT>            <a name="line.362"></a>
<FONT color="green">363</FONT>            // draw all the charts<a name="line.363"></a>
<FONT color="green">364</FONT>            for (int i = 0; i &lt; this.subplots.size(); i++) {<a name="line.364"></a>
<FONT color="green">365</FONT>                CategoryPlot plot = (CategoryPlot) this.subplots.get(i);<a name="line.365"></a>
<FONT color="green">366</FONT>                PlotRenderingInfo subplotInfo = null;<a name="line.366"></a>
<FONT color="green">367</FONT>                if (info != null) {<a name="line.367"></a>
<FONT color="green">368</FONT>                    subplotInfo = new PlotRenderingInfo(info.getOwner());<a name="line.368"></a>
<FONT color="green">369</FONT>                    info.addSubplotInfo(subplotInfo);<a name="line.369"></a>
<FONT color="green">370</FONT>                }<a name="line.370"></a>
<FONT color="green">371</FONT>                plot.draw(g2, this.subplotArea[i], null, parentState, subplotInfo);<a name="line.371"></a>
<FONT color="green">372</FONT>            }<a name="line.372"></a>
<FONT color="green">373</FONT>    <a name="line.373"></a>
<FONT color="green">374</FONT>            if (info != null) {<a name="line.374"></a>
<FONT color="green">375</FONT>                info.setDataArea(dataArea);<a name="line.375"></a>
<FONT color="green">376</FONT>            }<a name="line.376"></a>
<FONT color="green">377</FONT>    <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>        /**<a name="line.380"></a>
<FONT color="green">381</FONT>         * Sets the orientation for the plot (and all the subplots).<a name="line.381"></a>
<FONT color="green">382</FONT>         * <a name="line.382"></a>
<FONT color="green">383</FONT>         * @param orientation  the orientation.<a name="line.383"></a>
<FONT color="green">384</FONT>         */<a name="line.384"></a>
<FONT color="green">385</FONT>        public void setOrientation(PlotOrientation orientation) {<a name="line.385"></a>
<FONT color="green">386</FONT>    <a name="line.386"></a>
<FONT color="green">387</FONT>            super.setOrientation(orientation);<a name="line.387"></a>
<FONT color="green">388</FONT>    <a name="line.388"></a>
<FONT color="green">389</FONT>            Iterator iterator = this.subplots.iterator();<a name="line.389"></a>
<FONT color="green">390</FONT>            while (iterator.hasNext()) {<a name="line.390"></a>
<FONT color="green">391</FONT>                CategoryPlot plot = (CategoryPlot) iterator.next();<a name="line.391"></a>
<FONT color="green">392</FONT>                plot.setOrientation(orientation);<a name="line.392"></a>
<FONT color="green">393</FONT>            }<a name="line.393"></a>
<FONT color="green">394</FONT>    <a name="line.394"></a>
<FONT color="green">395</FONT>        }<a name="line.395"></a>
<FONT color="green">396</FONT>        <a name="line.396"></a>
<FONT color="green">397</FONT>        /**<a name="line.397"></a>
<FONT color="green">398</FONT>          * Returns the range for the axis.  This is the combined range of all the<a name="line.398"></a>
<FONT color="green">399</FONT>          * subplots.<a name="line.399"></a>
<FONT color="green">400</FONT>          *<a name="line.400"></a>
<FONT color="green">401</FONT>          * @param axis  the axis.<a name="line.401"></a>
<FONT color="green">402</FONT>          *<a name="line.402"></a>
<FONT color="green">403</FONT>          * @return The range.<a name="line.403"></a>
<FONT color="green">404</FONT>          */<a name="line.404"></a>
<FONT color="green">405</FONT>         public Range getDataRange(ValueAxis axis) {<a name="line.405"></a>
<FONT color="green">406</FONT>    <a name="line.406"></a>
<FONT color="green">407</FONT>             Range result = null;<a name="line.407"></a>
<FONT color="green">408</FONT>             if (this.subplots != null) {<a name="line.408"></a>
<FONT color="green">409</FONT>                 Iterator iterator = this.subplots.iterator();<a name="line.409"></a>
<FONT color="green">410</FONT>                 while (iterator.hasNext()) {<a name="line.410"></a>
<FONT color="green">411</FONT>                     CategoryPlot subplot = (CategoryPlot) iterator.next();<a name="line.411"></a>
<FONT color="green">412</FONT>                     result = Range.combine(result, subplot.getDataRange(axis));<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>             return result;<a name="line.415"></a>
<FONT color="green">416</FONT>    <a name="line.416"></a>
<FONT color="green">417</FONT>         }<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>         * Returns a collection of legend items for the plot.<a name="line.420"></a>
<FONT color="green">421</FONT>         *<a name="line.421"></a>
<FONT color="green">422</FONT>         * @return The legend items.<a name="line.422"></a>
<FONT color="green">423</FONT>         */<a name="line.423"></a>
<FONT color="green">424</FONT>        public LegendItemCollection getLegendItems() {<a name="line.424"></a>
<FONT color="green">425</FONT>            LegendItemCollection result = getFixedLegendItems();<a name="line.425"></a>
<FONT color="green">426</FONT>            if (result == null) {<a name="line.426"></a>
<FONT color="green">427</FONT>                result = new LegendItemCollection();<a name="line.427"></a>
<FONT color="green">428</FONT>                if (this.subplots != null) {<a name="line.428"></a>
<FONT color="green">429</FONT>                    Iterator iterator = this.subplots.iterator();<a name="line.429"></a>
<FONT color="green">430</FONT>                    while (iterator.hasNext()) {<a name="line.430"></a>
<FONT color="green">431</FONT>                        CategoryPlot plot = (CategoryPlot) iterator.next();<a name="line.431"></a>
<FONT color="green">432</FONT>                        LegendItemCollection more = plot.getLegendItems();<a name="line.432"></a>
<FONT color="green">433</FONT>                        result.addAll(more);<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 result;<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>         * Sets the size (width or height, depending on the orientation of the <a name="line.441"></a>
<FONT color="green">442</FONT>         * plot) for the domain axis of each subplot.<a name="line.442"></a>
<FONT color="green">443</FONT>         *<a name="line.443"></a>
<FONT color="green">444</FONT>         * @param space  the space.<a name="line.444"></a>
<FONT color="green">445</FONT>         */<a name="line.445"></a>
<FONT color="green">446</FONT>        protected void setFixedDomainAxisSpaceForSubplots(AxisSpace space) {<a name="line.446"></a>
<FONT color="green">447</FONT>    <a name="line.447"></a>
<FONT color="green">448</FONT>            Iterator iterator = this.subplots.iterator();<a name="line.448"></a>
<FONT color="green">449</FONT>            while (iterator.hasNext()) {<a name="line.449"></a>
<FONT color="green">450</FONT>                CategoryPlot plot = (CategoryPlot) iterator.next();<a name="line.450"></a>
<FONT color="green">451</FONT>                plot.setFixedDomainAxisSpace(space);<a name="line.451"></a>
<FONT color="green">452</FONT>            }<a name="line.452"></a>
<FONT color="green">453</FONT>    <a name="line.453"></a>
<FONT color="green">454</FONT>        }<a name="line.454"></a>
<FONT color="green">455</FONT>    <a name="line.455"></a>
<FONT color="green">456</FONT>        /**<a name="line.456"></a>
<FONT color="green">457</FONT>         * Handles a 'click' on the plot by updating the anchor value.<a name="line.457"></a>
<FONT color="green">458</FONT>         *<a name="line.458"></a>
<FONT color="green">459</FONT>         * @param x  x-coordinate of the click.<a name="line.459"></a>
<FONT color="green">460</FONT>         * @param y  y-coordinate of the click.<a name="line.460"></a>
<FONT color="green">461</FONT>         * @param info  information about the plot's dimensions.<a name="line.461"></a>
<FONT color="green">462</FONT>         *<a name="line.462"></a>
<FONT color="green">463</FONT>         */<a name="line.463"></a>
<FONT color="green">464</FONT>        public void handleClick(int x, int y, PlotRenderingInfo info) {<a name="line.464"></a>
<FONT color="green">465</FONT>    <a name="line.465"></a>
<FONT color="green">466</FONT>            Rectangle2D dataArea = info.getDataArea();<a name="line.466"></a>
<FONT color="green">467</FONT>            if (dataArea.contains(x, y)) {<a name="line.467"></a>
<FONT color="green">468</FONT>                for (int i = 0; i &lt; this.subplots.size(); i++) {<a name="line.468"></a>
<FONT color="green">469</FONT>                    CategoryPlot subplot = (CategoryPlot) this.subplots.get(i);<a name="line.469"></a>
<FONT color="green">470</FONT>                    PlotRenderingInfo subplotInfo = info.getSubplotInfo(i);<a name="line.470"></a>
<FONT color="green">471</FONT>                    subplot.handleClick(x, y, subplotInfo);<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>