📄 dateaxis.html
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<FONT color="green">142</FONT> <a name="line.142"></a><FONT color="green">143</FONT> /**<a name="line.143"></a><FONT color="green">144</FONT> * The base class for axes that display dates. You will find it easier to <a name="line.144"></a><FONT color="green">145</FONT> * understand how this axis works if you bear in mind that it really <a name="line.145"></a><FONT color="green">146</FONT> * displays/measures integer (or long) data, where the integers are <a name="line.146"></a><FONT color="green">147</FONT> * milliseconds since midnight, 1-Jan-1970. When displaying tick labels, the <a name="line.147"></a><FONT color="green">148</FONT> * millisecond values are converted back to dates using a <a name="line.148"></a><FONT color="green">149</FONT> * <code>DateFormat</code> instance.<a name="line.149"></a><FONT color="green">150</FONT> * <P><a name="line.150"></a><FONT color="green">151</FONT> * You can also create a {@link org.jfree.chart.axis.Timeline} and supply in <a name="line.151"></a><FONT color="green">152</FONT> * the constructor to create an axis that only contains certain domain values. <a name="line.152"></a><FONT color="green">153</FONT> * For example, this allows you to create a date axis that only contains <a name="line.153"></a><FONT color="green">154</FONT> * working days.<a name="line.154"></a><FONT color="green">155</FONT> */<a name="line.155"></a><FONT color="green">156</FONT> public class DateAxis extends ValueAxis implements Cloneable, Serializable {<a name="line.156"></a><FONT color="green">157</FONT> <a name="line.157"></a><FONT color="green">158</FONT> /** For serialization. */<a name="line.158"></a><FONT color="green">159</FONT> private static final long serialVersionUID = -1013460999649007604L;<a name="line.159"></a><FONT color="green">160</FONT> <a name="line.160"></a><FONT color="green">161</FONT> /** The default axis range. */<a name="line.161"></a><FONT color="green">162</FONT> public static final DateRange DEFAULT_DATE_RANGE = new DateRange();<a name="line.162"></a><FONT color="green">163</FONT> <a name="line.163"></a><FONT color="green">164</FONT> /** The default minimum auto range size. */<a name="line.164"></a><FONT color="green">165</FONT> public static final double <a name="line.165"></a><FONT color="green">166</FONT> DEFAULT_AUTO_RANGE_MINIMUM_SIZE_IN_MILLISECONDS = 2.0;<a name="line.166"></a><FONT color="green">167</FONT> <a name="line.167"></a><FONT color="green">168</FONT> /** The default date tick unit. */<a name="line.168"></a><FONT color="green">169</FONT> public static final DateTickUnit DEFAULT_DATE_TICK_UNIT<a name="line.169"></a><FONT color="green">170</FONT> = new DateTickUnit(DateTickUnit.DAY, 1, new SimpleDateFormat());<a name="line.170"></a><FONT color="green">171</FONT> <a name="line.171"></a><FONT color="green">172</FONT> /** The default anchor date. */<a name="line.172"></a><FONT color="green">173</FONT> public static final Date DEFAULT_ANCHOR_DATE = new Date();<a name="line.173"></a><FONT color="green">174</FONT> <a name="line.174"></a><FONT color="green">175</FONT> /** The current tick unit. */<a name="line.175"></a><FONT color="green">176</FONT> private DateTickUnit tickUnit;<a name="line.176"></a><FONT color="green">177</FONT> <a name="line.177"></a><FONT color="green">178</FONT> /** The override date format. */<a name="line.178"></a><FONT color="green">179</FONT> private DateFormat dateFormatOverride;<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> * Tick marks can be displayed at the start or the middle of the time <a name="line.182"></a><FONT color="green">183</FONT> * period. <a name="line.183"></a><FONT color="green">184</FONT> */<a name="line.184"></a><FONT color="green">185</FONT> private DateTickMarkPosition tickMarkPosition = DateTickMarkPosition.START;<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 timeline that includes all milliseconds (as defined by <a name="line.188"></a><FONT color="green">189</FONT> * <code>java.util.Date</code>) in the real time line.<a name="line.189"></a><FONT color="green">190</FONT> */<a name="line.190"></a><FONT color="green">191</FONT> private static class DefaultTimeline implements Timeline, Serializable {<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> * Converts a millisecond into a timeline value.<a name="line.194"></a><FONT color="green">195</FONT> *<a name="line.195"></a><FONT color="green">196</FONT> * @param millisecond the millisecond.<a name="line.196"></a><FONT color="green">197</FONT> *<a name="line.197"></a><FONT color="green">198</FONT> * @return The timeline value.<a name="line.198"></a><FONT color="green">199</FONT> */<a name="line.199"></a><FONT color="green">200</FONT> public long toTimelineValue(long millisecond) {<a name="line.200"></a><FONT color="green">201</FONT> return millisecond;<a name="line.201"></a><FONT color="green">202</FONT> }<a name="line.202"></a><FONT color="green">203</FONT> <a name="line.203"></a><FONT color="green">204</FONT> /**<a name="line.204"></a><FONT color="green">205</FONT> * Converts a date into a timeline value.<a name="line.205"></a><FONT color="green">206</FONT> *<a name="line.206"></a><FONT color="green">207</FONT> * @param date the domain value.<a name="line.207"></a><FONT color="green">208</FONT> *<a name="line.208"></a><FONT color="green">209</FONT> * @return The timeline value.<a name="line.209"></a><FONT color="green">210</FONT> */<a name="line.210"></a><FONT color="green">211</FONT> public long toTimelineValue(Date date) {<a name="line.211"></a><FONT color="green">212</FONT> return date.getTime();<a name="line.212"></a><FONT color="green">213</FONT> }<a name="line.213"></a><FONT color="green">214</FONT> <a name="line.214"></a><FONT color="green">215</FONT> /**<a name="line.215"></a><FONT color="green">216</FONT> * Converts a timeline value into a millisecond (as encoded by <a name="line.216"></a><FONT color="green">217</FONT> * <code>java.util.Date</code>).<a name="line.217"></a><FONT color="green">218</FONT> *<a name="line.218"></a><FONT color="green">219</FONT> * @param value the value.<a name="line.219"></a><FONT color="green">220</FONT> *<a name="line.220"></a><FONT color="green">221</FONT> * @return The millisecond.<a name="line.221"></a><FONT color="green">222</FONT> */<a name="line.222"></a><FONT color="green">223</FONT> public long toMillisecond(long value) {<a name="line.223"></a><FONT color="green">224</FONT> return value;<a name="line.224"></a><FONT color="green">225</FONT> }<a name="line.225"></a><FONT color="green">226</FONT> <a name="line.226"></a><FONT color="green">227</FONT> /**<a name="line.227"></a><FONT color="green">228</FONT> * Returns <code>true</code> if the timeline includes the specified <a name="line.228"></a><FONT color="green">229</FONT> * domain value.<a name="line.229"></a><FONT color="green">230</FONT> *<a name="line.230"></a><FONT color="green">231</FONT> * @param millisecond the millisecond.<a name="line.231"></a><FONT color="green">232</FONT> *<a name="line.232"></a><FONT color="green">233</FONT> * @return <code>true</code>.<a name="line.233"></a><FONT color="green">234</FONT> */<a name="line.234"></a><FONT color="green">235</FONT> public boolean containsDomainValue(long millisecond) {<a name="line.235"></a><FONT color="green">236</FONT> return true;<a name="line.236"></a><FONT color="green">237</FONT> }<a name="line.237"></a><FONT color="green">238</FONT> <a name="line.238"></a><FONT color="green">239</FONT> /**<a name="line.239"></a><FONT color="green">240</FONT> * Returns <code>true</code> if the timeline includes the specified <a name="line.240"></a><FONT color="green">241</FONT> * domain value.<a name="line.241"></a><FONT color="green">242</FONT> *<a name="line.242"></a><FONT color="green">243</FONT> * @param date the date.<a name="line.243"></a><FONT color="green">244</FONT> *<a name="line.244"></a><FONT color="green">245</FONT> * @return <code>true</code>.<a name="line.245"></a><FONT color="green">246</FONT> */<a name="line.246"></a><FONT color="green">247</FONT> public boolean containsDomainValue(Date date) {<a name="line.247"></a><FONT color="green">248</FONT> return true;<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> /**<a name="line.251"></a><FONT color="green">252</FONT> * Returns <code>true</code> if the timeline includes the specified <a name="line.252"></a><FONT color="green">253</FONT> * domain value range.<a name="line.253"></a><FONT color="green">254</FONT> *<a name="line.254"></a><FONT color="green">255</FONT> * @param from the start value.<a name="line.255"></a><FONT color="green">256</FONT> * @param to the end value.<a name="line.256"></a><FONT color="green">257</FONT> *<a name="line.257"></a><FONT color="green">258</FONT> * @return <code>true</code>.<a name="line.258"></a><FONT color="green">259</FONT> */<a name="line.259"></a><FONT color="green">260</FONT> public boolean containsDomainRange(long from, long to) {<a name="line.260"></a><FONT color="green">261</FONT> return true;<a name="line.261"></a><FONT color="green">262</FONT> }<a name="line.262"></a><FONT color="green">263</FONT> <a name="line.263"></a><FONT color="green">264</FONT> /**<a name="line.264"></a><FONT color="green">265</FONT> * Returns <code>true</code> if the timeline includes the specified <a name="line.265"></a><FONT color="green">266</FONT> * domain value range.<a name="line.266"></a><FONT color="green">267</FONT> *<a name="line.267"></a><FONT color="green">268</FONT> * @param from the start date.<a name="line.268"></a><FONT color="green">269</FONT> * @param to the end date.<a name="line.269"></a><FONT color="green">270</FONT> *<a name="line.270"></a><FONT color="green">271</FONT> * @return <code>true</code>.<a name="line.271"></a><FONT color="green">272</FONT> */<a name="line.272"></a><FONT color="green">273</FONT> public boolean containsDomainRange(Date from, Date to) {<a name="line.273"></a><FONT color="green">274</FONT> return true;<a name="line.274"></a><FONT color="green">275</FONT> }<a name="line.275"></a><FONT color="green">276</FONT> <a name="line.276"></a><FONT color="green">277</FONT> /**<a name="line.277"></a><FONT color="green">278</FONT> * Tests an object for equality with this instance.<a name="line.278"></a><FONT color="green">279</FONT> *<a name="line.279"></a><FONT color="green">280</FONT> * @param object the object.<a name="line.280"></a><FONT color="green">281</FONT> *<a name="line.281"></a><FONT color="green">282</FONT> * @return A boolean.<a name="line.282"></a><FONT color="green">283</FONT> */<a name="line.283"></a><FONT color="green">284</FONT> public boolean equals(Object object) {<a name="line.284"></a><FONT color="green">285</FONT> <a name="line.285"></a>⌨️ 快捷键说明
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