📄 subcategoryaxis.html
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<FONT color="green">165</FONT> *<a name="line.165"></a><FONT color="green">166</FONT> * @return The space required to draw the axis.<a name="line.166"></a><FONT color="green">167</FONT> */<a name="line.167"></a><FONT color="green">168</FONT> public AxisSpace reserveSpace(Graphics2D g2, Plot plot, <a name="line.168"></a><FONT color="green">169</FONT> Rectangle2D plotArea, <a name="line.169"></a><FONT color="green">170</FONT> RectangleEdge edge, AxisSpace space) {<a name="line.170"></a><FONT color="green">171</FONT> <a name="line.171"></a><FONT color="green">172</FONT> // create a new space object if one wasn't supplied...<a name="line.172"></a><FONT color="green">173</FONT> if (space == null) {<a name="line.173"></a><FONT color="green">174</FONT> space = new AxisSpace();<a name="line.174"></a><FONT color="green">175</FONT> }<a name="line.175"></a><FONT color="green">176</FONT> <a name="line.176"></a><FONT color="green">177</FONT> // if the axis is not visible, no additional space is required...<a name="line.177"></a><FONT color="green">178</FONT> if (!isVisible()) {<a name="line.178"></a><FONT color="green">179</FONT> return space;<a name="line.179"></a><FONT color="green">180</FONT> }<a name="line.180"></a><FONT color="green">181</FONT> <a name="line.181"></a><FONT color="green">182</FONT> space = super.reserveSpace(g2, plot, plotArea, edge, space);<a name="line.182"></a><FONT color="green">183</FONT> double maxdim = getMaxDim(g2, edge);<a name="line.183"></a><FONT color="green">184</FONT> if (RectangleEdge.isTopOrBottom(edge)) {<a name="line.184"></a><FONT color="green">185</FONT> space.add(maxdim, edge);<a name="line.185"></a><FONT color="green">186</FONT> }<a name="line.186"></a><FONT color="green">187</FONT> else if (RectangleEdge.isLeftOrRight(edge)) {<a name="line.187"></a><FONT color="green">188</FONT> space.add(maxdim, edge);<a name="line.188"></a><FONT color="green">189</FONT> }<a name="line.189"></a><FONT color="green">190</FONT> return space;<a name="line.190"></a><FONT color="green">191</FONT> }<a name="line.191"></a><FONT color="green">192</FONT> <a name="line.192"></a><FONT color="green">193</FONT> /**<a name="line.193"></a><FONT color="green">194</FONT> * Returns the maximum of the relevant dimension (height or width) of the <a name="line.194"></a><FONT color="green">195</FONT> * subcategory labels.<a name="line.195"></a><FONT color="green">196</FONT> * <a name="line.196"></a><FONT color="green">197</FONT> * @param g2 the graphics device.<a name="line.197"></a><FONT color="green">198</FONT> * @param edge the edge.<a name="line.198"></a><FONT color="green">199</FONT> * <a name="line.199"></a><FONT color="green">200</FONT> * @return The maximum dimension.<a name="line.200"></a><FONT color="green">201</FONT> */<a name="line.201"></a><FONT color="green">202</FONT> private double getMaxDim(Graphics2D g2, RectangleEdge edge) {<a name="line.202"></a><FONT color="green">203</FONT> double result = 0.0;<a name="line.203"></a><FONT color="green">204</FONT> g2.setFont(this.subLabelFont);<a name="line.204"></a><FONT color="green">205</FONT> FontMetrics fm = g2.getFontMetrics();<a name="line.205"></a><FONT color="green">206</FONT> Iterator iterator = this.subCategories.iterator();<a name="line.206"></a><FONT color="green">207</FONT> while (iterator.hasNext()) {<a name="line.207"></a><FONT color="green">208</FONT> Comparable subcategory = (Comparable) iterator.next();<a name="line.208"></a><FONT color="green">209</FONT> String label = subcategory.toString();<a name="line.209"></a><FONT color="green">210</FONT> Rectangle2D bounds = TextUtilities.getTextBounds(label, g2, fm);<a name="line.210"></a><FONT color="green">211</FONT> double dim = 0.0;<a name="line.211"></a><FONT color="green">212</FONT> if (RectangleEdge.isLeftOrRight(edge)) {<a name="line.212"></a><FONT color="green">213</FONT> dim = bounds.getWidth(); <a name="line.213"></a><FONT color="green">214</FONT> }<a name="line.214"></a><FONT color="green">215</FONT> else { // must be top or bottom<a name="line.215"></a><FONT color="green">216</FONT> dim = bounds.getHeight();<a name="line.216"></a><FONT color="green">217</FONT> }<a name="line.217"></a><FONT color="green">218</FONT> result = Math.max(result, dim);<a name="line.218"></a><FONT color="green">219</FONT> } <a name="line.219"></a><FONT color="green">220</FONT> return result;<a name="line.220"></a><FONT color="green">221</FONT> }<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> * Draws the axis on a Java 2D graphics device (such as the screen or a <a name="line.224"></a><FONT color="green">225</FONT> * printer).<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 (<code>null</code> not permitted).<a name="line.227"></a><FONT color="green">228</FONT> * @param cursor the cursor location.<a name="line.228"></a><FONT color="green">229</FONT> * @param plotArea the area within which the axis should be drawn <a name="line.229"></a><FONT color="green">230</FONT> * (<code>null</code> not permitted).<a name="line.230"></a><FONT color="green">231</FONT> * @param dataArea the area within which the plot is being drawn <a name="line.231"></a><FONT color="green">232</FONT> * (<code>null</code> not permitted).<a name="line.232"></a><FONT color="green">233</FONT> * @param edge the location of the axis (<code>null</code> not permitted).<a name="line.233"></a><FONT color="green">234</FONT> * @param plotState collects information about the plot <a name="line.234"></a><FONT color="green">235</FONT> * (<code>null</code> permitted).<a name="line.235"></a><FONT color="green">236</FONT> * <a name="line.236"></a><FONT color="green">237</FONT> * @return The axis state (never <code>null</code>).<a name="line.237"></a><FONT color="green">238</FONT> */<a name="line.238"></a><FONT color="green">239</FONT> public AxisState draw(Graphics2D g2, <a name="line.239"></a><FONT color="green">240</FONT> double cursor, <a name="line.240"></a><FONT color="green">241</FONT> Rectangle2D plotArea, <a name="line.241"></a><FONT color="green">242</FONT> Rectangle2D dataArea,<a name="line.242"></a><FONT color="green">243</FONT> RectangleEdge edge,<a name="line.243"></a><FONT color="green">244</FONT> PlotRenderingInfo plotState) {<a name="line.244"></a><FONT color="green">245</FONT> <a name="line.245"></a><FONT color="green">246</FONT> // if the axis is not visible, don't draw it...<a name="line.246"></a><FONT color="green">247</FONT> if (!isVisible()) {<a name="line.247"></a><FONT color="green">248</FONT> return new AxisState(cursor);<a name="line.248"></a><FONT color="green">249</FONT> }<a name="line.249"></a><FONT color="green">250</FONT> <a name="line.250"></a><FONT color="green">251</FONT> if (isAxisLineVisible()) {<a name="line.251"></a><FONT color="green">252</FONT> drawAxisLine(g2, cursor, dataArea, edge);<a name="line.252"></a><FONT color="green">253</FONT> }<a name="line.253"></a><FONT color="green">254</FONT> <a name="line.254"></a><FONT color="green">255</FONT> // draw the category labels and axis label<a name="line.255"></a><FONT color="green">256</FONT> AxisState state = new AxisState(cursor);<a name="line.256"></a><FONT color="green">257</FONT> state = drawSubCategoryLabels(<a name="line.257"></a><FONT color="green">258</FONT> g2, plotArea, dataArea, edge, state, plotState<a name="line.258"></a><FONT color="green">259</FONT> );<a name="line.259"></a><FONT color="green">260</FONT> state = drawCategoryLabels(g2, plotArea, dataArea, edge, state, <a name="line.260"></a><FONT color="green">261</FONT> plotState);<a name="line.261"></a><FONT color="green">262</FONT> state = drawLabel(getLabel(), g2, plotArea, dataArea, edge, state);<a name="line.262"></a><FONT color="green">263</FONT> <a name="line.263"></a><FONT color="green">264</FONT> return state;<a name="line.264"></a><FONT color="green">265</FONT> <a name="line.265"></a><FONT color="green">266</FONT> }<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> * Draws the category labels and returns the updated axis state.<a name="line.269"></a><FONT color="green">270</FONT> *<a name="line.270"></a><FONT color="green">271</FONT> * @param g2 the graphics device (<code>null</code> not permitted).<a name="line.271"></a><FONT color="green">272</FONT> * @param plotArea the plot area (<code>null</code> not permitted).<a name="line.272"></a><FONT color="green">273</FONT> * @param dataArea the area inside the axes (<code>null</code> not <a name="line.273"></a><FONT color="green">274</FONT> * permitted).<a name="line.274"></a><FONT color="green">275</FONT> * @param edge the axis location (<code>null</code> not permitted).<a name="line.275"></a><FONT color="green">276</FONT> * @param state the axis state (<code>null</code> not permitted).<a name="line.276"></a><FONT color="green">277</FONT> * @param plotState collects information about the plot (<code>null</code> <a name="line.277"></a><FONT color="green">278</FONT> * permitted).<a name="line.278"></a><FONT color="green">279</FONT> * <a name="line.279"></a><FONT color="green">280</FONT> * @return The updated axis state (never <code>null</code>).<a name="line.280"></a><FONT color="green">281</FONT> */<a name="line.281"></a><FONT color="green">282</FONT> protected AxisState drawSubCategoryLabels(Graphics2D g2,<a name="line.282"></a><FONT color="green">283</FONT> Rectangle2D plotArea,<a name="line.283"></a><FONT color="green">284</FONT> Rectangle2D dataArea,<a name="line.284"></a><FONT color="green">285</FONT> RectangleEdge edge,<a name="line.285"></a><FONT color="green">286</FONT> AxisState state,<a name="line.286"></a><FONT color="green">287</FONT> PlotRenderingInfo plotState) {<a name="line.287"></a><FONT color="green">288</FONT> <a name="line.288"></a><FONT color="green">289</FONT> if (state == null) {<a name="line.289"></a><FONT color="green">290</FONT> throw new IllegalArgumentException("Null 'state' argument.");<a name="line.290"></a><FONT color="green">291</FONT> }<a name="line.291"></a><FONT color="green">292</FONT> <a name="line.292"></a><FONT color="green">293</FONT> g2.setFont(this.subLabelFont);<a name="line.293"></a><FONT color="green">294</FONT> g2.setPaint(this.subLabelPaint);<a name="line.294"></a><FONT color="green">295</FONT> CategoryPlot plot = (CategoryPlot) getPlot();<a name="line.295"></a><FONT color="green">296</FONT> CategoryDataset dataset = plot.getDataset();<a name="line.296"></a><FONT color="green">297</FONT> int categoryCount = dataset.getColumnCount();<a name="line.297"></a><FONT color="green">298</FONT> <a name="line.298"></a><FONT color="green">299</FONT> double maxdim = getMaxDim(g2, edge);<a name="line.299"></a><FONT color="green">300</FONT> for (int categoryIndex = 0; categoryIndex < categoryCount; <a name="line.300"></a><FONT color="green">301</FONT> categoryIndex++) {<a name="line.301"></a><FONT color="green">302</FONT> <a name="line.302"></a><FONT color="green">303</FONT> double x0 = 0.0;<a name="line.303"></a><FONT color="green">304</FONT> double x1 = 0.0;<a name="line.304"></a><FONT color="green">305</FONT> double y0 = 0.0;<a name="line.305"></a><FONT color="green">306</FONT> double y1 = 0.0;<a name="line.306"></a><FONT color="green">307</FONT> if (edge == RectangleEdge.TOP) {<a name="line.307"></a><FONT color="green">308</FONT> x0 = getCategoryStart(categoryIndex, categoryCount, dataArea, <a name="line.308"></a><FONT color="green">309</FONT> edge);<a name="line.309"></a><FONT color="green">310</FONT> x1 = getCategoryEnd(categoryIndex, categoryCount, dataArea, <a name="line.310"></a><FONT color="green">311</FONT> edge);<a name="line.311"></a><FONT color="green">312</FONT> y1 = state.getCursor();<a name="line.312"></a><FONT color="green">313</FONT> y0 = y1 - maxdim;<a name="line.313"></a><FONT color="green">314</FONT> }<a name="line.314"></a><FONT color="green">315</FONT> else if (edge == RectangleEdge.BOTTOM) {<a name="line.315"></a><FONT color="green">316</FONT> x0 = getCategoryStart(categoryIndex, categoryCount, dataArea, <a name="line.316"></a><FONT color="green">317</FONT> edge);<a name="line.317"></a><FONT color="green">318</FONT> x1 = getCategoryEnd(categoryIndex, categoryCount, dataArea, <a name="line.318"></a><FONT color="green">319</FONT> edge); <a name="line.319"></a><FONT color="green">320</FONT> y0 = state.getCursor(); <a name="line.320"></a><FONT color="green">321</FONT> y1 = y0 + maxdim;<a name="line.321"></a><FONT color="green">322</FONT> }<a name="line.322"></a><FONT color="green">323</FONT> else if (edge == RectangleEdge.LEFT) {<a name="line.323"></a><FONT color="green">324</FONT> y0 = getCategoryStart(categoryIndex, categoryCount, dataArea, <a name="line.324"></a><FONT color="green">325</FONT> edge);<a name="line.325"></a><FONT color="green">326</FONT> y1 = getCategoryEnd(categoryIndex, categoryCount, dataArea, <a name="line.326"></a><FONT color="green">327</FONT> edge);<a name="line.327"></a><FONT color="green">328</FONT> x1 = state.getCursor();<a name="line.328"></a><FONT color="green">329</FONT> x0 = x1 - maxdim;<a name="line.329"></a><FONT color="green">330</FONT> }<a name="line.330"></a><FONT color="green">331</FONT> else if (edge == RectangleEdge.RIGHT) {<a name="line.331"></a>⌨️ 快捷键说明
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