highlowrenderer.html

jfreechart1。0。2的api。

<FONT color="green">175</FONT>            notifyListeners(new RendererChangeEvent(this));<a name="line.175"></a>
<FONT color="green">176</FONT>        }<a name="line.176"></a>
<FONT color="green">177</FONT>        <a name="line.177"></a>
<FONT color="green">178</FONT>        /**<a name="line.178"></a>
<FONT color="green">179</FONT>         * Returns the paint used to draw the ticks for the open values.<a name="line.179"></a>
<FONT color="green">180</FONT>         * <a name="line.180"></a>
<FONT color="green">181</FONT>         * @return The paint used to draw the ticks for the open values (possibly <a name="line.181"></a>
<FONT color="green">182</FONT>         *         &lt;code&gt;null&lt;/code&gt;).<a name="line.182"></a>
<FONT color="green">183</FONT>         */<a name="line.183"></a>
<FONT color="green">184</FONT>        public Paint getOpenTickPaint() {<a name="line.184"></a>
<FONT color="green">185</FONT>            return this.openTickPaint;<a name="line.185"></a>
<FONT color="green">186</FONT>        }<a name="line.186"></a>
<FONT color="green">187</FONT>        <a name="line.187"></a>
<FONT color="green">188</FONT>        /**<a name="line.188"></a>
<FONT color="green">189</FONT>         * Sets the paint used to draw the ticks for the open values and sends a <a name="line.189"></a>
<FONT color="green">190</FONT>         * {@link RendererChangeEvent} to all registered listeners.  If you set<a name="line.190"></a>
<FONT color="green">191</FONT>         * this to &lt;code&gt;null&lt;/code&gt; (the default), the series paint is used <a name="line.191"></a>
<FONT color="green">192</FONT>         * instead.<a name="line.192"></a>
<FONT color="green">193</FONT>         * <a name="line.193"></a>
<FONT color="green">194</FONT>         * @param paint  the paint (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.194"></a>
<FONT color="green">195</FONT>         */<a name="line.195"></a>
<FONT color="green">196</FONT>        public void setOpenTickPaint(Paint paint) {<a name="line.196"></a>
<FONT color="green">197</FONT>            this.openTickPaint = paint;<a name="line.197"></a>
<FONT color="green">198</FONT>            notifyListeners(new RendererChangeEvent(this));<a name="line.198"></a>
<FONT color="green">199</FONT>        }<a name="line.199"></a>
<FONT color="green">200</FONT>        <a name="line.200"></a>
<FONT color="green">201</FONT>        /**<a name="line.201"></a>
<FONT color="green">202</FONT>         * Returns the paint used to draw the ticks for the close values.<a name="line.202"></a>
<FONT color="green">203</FONT>         * <a name="line.203"></a>
<FONT color="green">204</FONT>         * @return The paint used to draw the ticks for the close values (possibly <a name="line.204"></a>
<FONT color="green">205</FONT>         *         &lt;code&gt;null&lt;/code&gt;).<a name="line.205"></a>
<FONT color="green">206</FONT>         */<a name="line.206"></a>
<FONT color="green">207</FONT>        public Paint getCloseTickPaint() {<a name="line.207"></a>
<FONT color="green">208</FONT>            return this.closeTickPaint;<a name="line.208"></a>
<FONT color="green">209</FONT>        }<a name="line.209"></a>
<FONT color="green">210</FONT>        <a name="line.210"></a>
<FONT color="green">211</FONT>        /**<a name="line.211"></a>
<FONT color="green">212</FONT>         * Sets the paint used to draw the ticks for the close values and sends a <a name="line.212"></a>
<FONT color="green">213</FONT>         * {@link RendererChangeEvent} to all registered listeners.  If you set<a name="line.213"></a>
<FONT color="green">214</FONT>         * this to &lt;code&gt;null&lt;/code&gt; (the default), the series paint is used <a name="line.214"></a>
<FONT color="green">215</FONT>         * instead.<a name="line.215"></a>
<FONT color="green">216</FONT>         * <a name="line.216"></a>
<FONT color="green">217</FONT>         * @param paint  the paint (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.217"></a>
<FONT color="green">218</FONT>         */<a name="line.218"></a>
<FONT color="green">219</FONT>        public void setCloseTickPaint(Paint paint) {<a name="line.219"></a>
<FONT color="green">220</FONT>            this.closeTickPaint = paint;<a name="line.220"></a>
<FONT color="green">221</FONT>            notifyListeners(new RendererChangeEvent(this));<a name="line.221"></a>
<FONT color="green">222</FONT>        }<a name="line.222"></a>
<FONT color="green">223</FONT>        <a name="line.223"></a>
<FONT color="green">224</FONT>        /**<a name="line.224"></a>
<FONT color="green">225</FONT>         * Draws the visual representation of a single data item.<a name="line.225"></a>
<FONT color="green">226</FONT>         *<a name="line.226"></a>
<FONT color="green">227</FONT>         * @param g2  the graphics device.<a name="line.227"></a>
<FONT color="green">228</FONT>         * @param state  the renderer state.<a name="line.228"></a>
<FONT color="green">229</FONT>         * @param dataArea  the area within which the plot is being drawn.<a name="line.229"></a>
<FONT color="green">230</FONT>         * @param info  collects information about the drawing.<a name="line.230"></a>
<FONT color="green">231</FONT>         * @param plot  the plot (can be used to obtain standard color <a name="line.231"></a>
<FONT color="green">232</FONT>         *              information etc).<a name="line.232"></a>
<FONT color="green">233</FONT>         * @param domainAxis  the domain axis.<a name="line.233"></a>
<FONT color="green">234</FONT>         * @param rangeAxis  the range axis.<a name="line.234"></a>
<FONT color="green">235</FONT>         * @param dataset  the dataset.<a name="line.235"></a>
<FONT color="green">236</FONT>         * @param series  the series index (zero-based).<a name="line.236"></a>
<FONT color="green">237</FONT>         * @param item  the item index (zero-based).<a name="line.237"></a>
<FONT color="green">238</FONT>         * @param crosshairState  crosshair information for the plot <a name="line.238"></a>
<FONT color="green">239</FONT>         *                        (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.239"></a>
<FONT color="green">240</FONT>         * @param pass  the pass index.<a name="line.240"></a>
<FONT color="green">241</FONT>         */<a name="line.241"></a>
<FONT color="green">242</FONT>        public void drawItem(Graphics2D g2,<a name="line.242"></a>
<FONT color="green">243</FONT>                             XYItemRendererState state,<a name="line.243"></a>
<FONT color="green">244</FONT>                             Rectangle2D dataArea,<a name="line.244"></a>
<FONT color="green">245</FONT>                             PlotRenderingInfo info,<a name="line.245"></a>
<FONT color="green">246</FONT>                             XYPlot plot,<a name="line.246"></a>
<FONT color="green">247</FONT>                             ValueAxis domainAxis,<a name="line.247"></a>
<FONT color="green">248</FONT>                             ValueAxis rangeAxis,<a name="line.248"></a>
<FONT color="green">249</FONT>                             XYDataset dataset,<a name="line.249"></a>
<FONT color="green">250</FONT>                             int series,<a name="line.250"></a>
<FONT color="green">251</FONT>                             int item,<a name="line.251"></a>
<FONT color="green">252</FONT>                             CrosshairState crosshairState,<a name="line.252"></a>
<FONT color="green">253</FONT>                             int pass) {<a name="line.253"></a>
<FONT color="green">254</FONT>    <a name="line.254"></a>
<FONT color="green">255</FONT>            double x = dataset.getXValue(series, item);<a name="line.255"></a>
<FONT color="green">256</FONT>            if (!domainAxis.getRange().contains(x)) {<a name="line.256"></a>
<FONT color="green">257</FONT>                return;    // the x value is not within the axis range<a name="line.257"></a>
<FONT color="green">258</FONT>            }<a name="line.258"></a>
<FONT color="green">259</FONT>            double xx = domainAxis.valueToJava2D(x, dataArea, <a name="line.259"></a>
<FONT color="green">260</FONT>                    plot.getDomainAxisEdge());<a name="line.260"></a>
<FONT color="green">261</FONT>            <a name="line.261"></a>
<FONT color="green">262</FONT>            // setup for collecting optional entity info...<a name="line.262"></a>
<FONT color="green">263</FONT>            Shape entityArea = null;<a name="line.263"></a>
<FONT color="green">264</FONT>            EntityCollection entities = null;<a name="line.264"></a>
<FONT color="green">265</FONT>            if (info != null) {<a name="line.265"></a>
<FONT color="green">266</FONT>                entities = info.getOwner().getEntityCollection();<a name="line.266"></a>
<FONT color="green">267</FONT>            }<a name="line.267"></a>
<FONT color="green">268</FONT>    <a name="line.268"></a>
<FONT color="green">269</FONT>            PlotOrientation orientation = plot.getOrientation();<a name="line.269"></a>
<FONT color="green">270</FONT>            RectangleEdge location = plot.getRangeAxisEdge();<a name="line.270"></a>
<FONT color="green">271</FONT>    <a name="line.271"></a>
<FONT color="green">272</FONT>            Paint itemPaint = getItemPaint(series, item);<a name="line.272"></a>
<FONT color="green">273</FONT>            Stroke itemStroke = getItemStroke(series, item);<a name="line.273"></a>
<FONT color="green">274</FONT>            g2.setPaint(itemPaint);<a name="line.274"></a>
<FONT color="green">275</FONT>            g2.setStroke(itemStroke);<a name="line.275"></a>
<FONT color="green">276</FONT>            <a name="line.276"></a>
<FONT color="green">277</FONT>            if (dataset instanceof OHLCDataset) {<a name="line.277"></a>
<FONT color="green">278</FONT>                OHLCDataset hld = (OHLCDataset) dataset;<a name="line.278"></a>
<FONT color="green">279</FONT>                <a name="line.279"></a>
<FONT color="green">280</FONT>                double yHigh = hld.getHighValue(series, item);<a name="line.280"></a>
<FONT color="green">281</FONT>                double yLow = hld.getLowValue(series, item);<a name="line.281"></a>
<FONT color="green">282</FONT>                if (!Double.isNaN(yHigh) &amp;&amp; !Double.isNaN(yLow)) {<a name="line.282"></a>
<FONT color="green">283</FONT>                    double yyHigh = rangeAxis.valueToJava2D(yHigh, dataArea, <a name="line.283"></a>
<FONT color="green">284</FONT>                            location);<a name="line.284"></a>
<FONT color="green">285</FONT>                    double yyLow = rangeAxis.valueToJava2D(yLow, dataArea, <a name="line.285"></a>
<FONT color="green">286</FONT>                            location);<a name="line.286"></a>
<FONT color="green">287</FONT>                    if (orientation == PlotOrientation.HORIZONTAL) {<a name="line.287"></a>
<FONT color="green">288</FONT>                        g2.draw(new Line2D.Double(yyLow, xx, yyHigh, xx));<a name="line.288"></a>
<FONT color="green">289</FONT>                        entityArea = new Rectangle2D.Double(Math.min(yyLow, yyHigh),<a name="line.289"></a>
<FONT color="green">290</FONT>                                xx - 1.0, Math.abs(yyHigh - yyLow), 2.0);<a name="line.290"></a>
<FONT color="green">291</FONT>                    }<a name="line.291"></a>
<FONT color="green">292</FONT>                    else if (orientation == PlotOrientation.VERTICAL) {<a name="line.292"></a>
<FONT color="green">293</FONT>                        g2.draw(new Line2D.Double(xx, yyLow, xx, yyHigh));   <a name="line.293"></a>
<FONT color="green">294</FONT>                        entityArea = new Rectangle2D.Double(xx - 1.0, <a name="line.294"></a>
<FONT color="green">295</FONT>                                Math.min(yyLow, yyHigh), 2.0,  <a name="line.295"></a>
<FONT color="green">296</FONT>                                Math.abs(yyHigh - yyLow));<a name="line.296"></a>
<FONT color="green">297</FONT>                    }<a name="line.297"></a>
<FONT color="green">298</FONT>                }<a name="line.298"></a>
<FONT color="green">299</FONT>                <a name="line.299"></a>
<FONT color="green">300</FONT>                double delta = 2.0;<a name="line.300"></a>
<FONT color="green">301</FONT>                if (domainAxis.isInverted()) {<a name="line.301"></a>
<FONT color="green">302</FONT>                    delta = -delta;<a name="line.302"></a>
<FONT color="green">303</FONT>                }<a name="line.303"></a>
<FONT color="green">304</FONT>                if (getDrawOpenTicks()) {<a name="line.304"></a>
<FONT color="green">305</FONT>                    double yOpen = hld.getOpenValue(series, item);<a name="line.305"></a>
<FONT color="green">306</FONT>                    if (!Double.isNaN(yOpen)) {<a name="line.306"></a>
<FONT color="green">307</FONT>                        double yyOpen = rangeAxis.valueToJava2D(yOpen, dataArea, <a name="line.307"></a>
<FONT color="green">308</FONT>                                location);<a name="line.308"></a>
<FONT color="green">309</FONT>                        if (this.openTickPaint != null) {<a name="line.309"></a>
<FONT color="green">310</FONT>                            g2.setPaint(this.openTickPaint);<a name="line.310"></a>
<FONT color="green">311</FONT>                        }<a name="line.311"></a>
<FONT color="green">312</FONT>                        else {<a name="line.312"></a>
<FONT color="green">313</FONT>                            g2.setPaint(itemPaint);<a name="line.313"></a>
<FONT color="green">314</FONT>                        }<a name="line.314"></a>
<FONT color="green">315</FONT>                        if (orientation == PlotOrientation.HORIZONTAL) {<a name="line.315"></a>
<FONT color="green">316</FONT>                            g2.draw(new Line2D.Double(yyOpen, xx + delta, yyOpen, <a name="line.316"></a>
<FONT color="green">317</FONT>                                    xx));   <a name="line.317"></a>
<FONT color="green">318</FONT>                        }<a name="line.318"></a>
<FONT color="green">319</FONT>                        else if (orientation == PlotOrientation.VERTICAL) {<a name="line.319"></a>
<FONT color="green">320</FONT>                            g2.draw(new Line2D.Double(xx - delta, yyOpen, xx, <a name="line.320"></a>
<FONT color="green">321</FONT>                                    yyOpen));   <a name="line.321"></a>
<FONT color="green">322</FONT>                        }<a name="line.322"></a>
<FONT color="green">323</FONT>                    }<a name="line.323"></a>
<FONT color="green">324</FONT>                }<a name="line.324"></a>
<FONT color="green">325</FONT>                <a name="line.325"></a>
<FONT color="green">326</FONT>                if (getDrawCloseTicks()) {<a name="line.326"></a>
<FONT color="green">327</FONT>                    double yClose = hld.getCloseValue(series, item);<a name="line.327"></a>
<FONT color="green">328</FONT>                    if (!Double.isNaN(yClose)) {<a name="line.328"></a>
<FONT color="green">329</FONT>                        double yyClose = rangeAxis.valueToJava2D(<a name="line.329"></a>
<FONT color="green">330</FONT>                            yClose, dataArea, location);<a name="line.330"></a>
<FONT color="green">331</FONT>                        if (this.closeTickPaint != null) {<a name="line.331"></a>
<FONT color="green">332</FONT>                            g2.setPaint(this.closeTickPaint);<a name="line.332"></a>
<FONT color="green">333</FONT>                        }<a name="line.333"></a>
<FONT color="green">334</FONT>                        else {<a name="line.334"></a>
<FONT color="green">335</FONT>                            g2.setPaint(itemPaint);<a name="line.335"></a>
<FONT color="green">336</FONT>                        }<a name="line.336"></a>
<FONT color="green">337</FONT>                        if (orientation == PlotOrientation.HORIZONTAL) {<a name="line.337"></a>
<FONT color="green">338</FONT>                            g2.draw(new Line2D.Double(yyClose, xx, yyClose, <a name="line.338"></a>
<FONT color="green">339</FONT>                                    xx - delta));   <a name="line.339"></a>
<FONT color="green">340</FONT>                        }<a name="line.340"></a>
<FONT color="green">341</FONT>                        else if (orientation == PlotOrientation.VERTICAL) {<a name="line.341"></a>
<FONT color="green">342</FONT>                            g2.draw(new Line2D.Double(xx, yyClose, xx + delta, <a name="line.342"></a>
<FONT color="green">343</FONT>                                    yyClose));   <a name="line.343"></a>
<FONT color="green">344</FONT>                        }<a name="line.344"></a>
<FONT color="green">345</FONT>                    }<a name="line.345"></a>
<FONT color="green">346</FONT>                }<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>            else {<a name="line.349"></a>
<FONT color="green">350</FONT>                // not a HighLowDataset, so just draw a line connecting this point <a name="line.350"></a>
<FONT color="green">351</FONT>                // with the previous point...<a name="line.351"></a>