axisspace.html

jfreechart1。0。2的api。

<FONT color="green">147</FONT>            return this.right;<a name="line.147"></a>
<FONT color="green">148</FONT>        }<a name="line.148"></a>
<FONT color="green">149</FONT>        <a name="line.149"></a>
<FONT color="green">150</FONT>        /**<a name="line.150"></a>
<FONT color="green">151</FONT>         * Sets the space reserved for axes at the right of the plot area. <a name="line.151"></a>
<FONT color="green">152</FONT>         * <a name="line.152"></a>
<FONT color="green">153</FONT>         * @param space  the space (in Java2D units).<a name="line.153"></a>
<FONT color="green">154</FONT>         */<a name="line.154"></a>
<FONT color="green">155</FONT>        public void setRight(double space) {<a name="line.155"></a>
<FONT color="green">156</FONT>            this.right = space;<a name="line.156"></a>
<FONT color="green">157</FONT>        }<a name="line.157"></a>
<FONT color="green">158</FONT>    <a name="line.158"></a>
<FONT color="green">159</FONT>        /**<a name="line.159"></a>
<FONT color="green">160</FONT>         * Adds space to the top, bottom, left or right edge of the plot area.<a name="line.160"></a>
<FONT color="green">161</FONT>         * <a name="line.161"></a>
<FONT color="green">162</FONT>         * @param space  the space (in Java2D units).<a name="line.162"></a>
<FONT color="green">163</FONT>         * @param edge  the edge (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.163"></a>
<FONT color="green">164</FONT>         */<a name="line.164"></a>
<FONT color="green">165</FONT>        public void add(double space, RectangleEdge edge) {<a name="line.165"></a>
<FONT color="green">166</FONT>            if (edge == null) {<a name="line.166"></a>
<FONT color="green">167</FONT>                throw new IllegalArgumentException("Null 'edge' argument.");<a name="line.167"></a>
<FONT color="green">168</FONT>            }<a name="line.168"></a>
<FONT color="green">169</FONT>            if (edge == RectangleEdge.TOP) {     <a name="line.169"></a>
<FONT color="green">170</FONT>                this.top += space;<a name="line.170"></a>
<FONT color="green">171</FONT>            }<a name="line.171"></a>
<FONT color="green">172</FONT>            else if (edge == RectangleEdge.BOTTOM) {<a name="line.172"></a>
<FONT color="green">173</FONT>                this.bottom += space;<a name="line.173"></a>
<FONT color="green">174</FONT>            }<a name="line.174"></a>
<FONT color="green">175</FONT>            else if (edge == RectangleEdge.LEFT) {<a name="line.175"></a>
<FONT color="green">176</FONT>                this.left += space;<a name="line.176"></a>
<FONT color="green">177</FONT>            }<a name="line.177"></a>
<FONT color="green">178</FONT>            else if (edge == RectangleEdge.RIGHT) {<a name="line.178"></a>
<FONT color="green">179</FONT>                this.right += space;<a name="line.179"></a>
<FONT color="green">180</FONT>            }<a name="line.180"></a>
<FONT color="green">181</FONT>            else {<a name="line.181"></a>
<FONT color="green">182</FONT>                throw new IllegalStateException("Unrecognised 'edge' argument.");<a name="line.182"></a>
<FONT color="green">183</FONT>            }<a name="line.183"></a>
<FONT color="green">184</FONT>        }<a name="line.184"></a>
<FONT color="green">185</FONT>        <a name="line.185"></a>
<FONT color="green">186</FONT>        /**<a name="line.186"></a>
<FONT color="green">187</FONT>         * Ensures that this object reserves at least as much space as another.<a name="line.187"></a>
<FONT color="green">188</FONT>         * <a name="line.188"></a>
<FONT color="green">189</FONT>         * @param space  the other space.<a name="line.189"></a>
<FONT color="green">190</FONT>         */<a name="line.190"></a>
<FONT color="green">191</FONT>        public void ensureAtLeast(AxisSpace space) {<a name="line.191"></a>
<FONT color="green">192</FONT>            this.top = Math.max(this.top, space.top);<a name="line.192"></a>
<FONT color="green">193</FONT>            this.bottom = Math.max(this.bottom, space.bottom);<a name="line.193"></a>
<FONT color="green">194</FONT>            this.left = Math.max(this.left, space.left);<a name="line.194"></a>
<FONT color="green">195</FONT>            this.right = Math.max(this.right, space.right);<a name="line.195"></a>
<FONT color="green">196</FONT>        }<a name="line.196"></a>
<FONT color="green">197</FONT>        <a name="line.197"></a>
<FONT color="green">198</FONT>        /**<a name="line.198"></a>
<FONT color="green">199</FONT>         * Ensures there is a minimum amount of space at the edge corresponding to <a name="line.199"></a>
<FONT color="green">200</FONT>         * the specified axis location.<a name="line.200"></a>
<FONT color="green">201</FONT>         * <a name="line.201"></a>
<FONT color="green">202</FONT>         * @param space  the space.<a name="line.202"></a>
<FONT color="green">203</FONT>         * @param edge  the location.<a name="line.203"></a>
<FONT color="green">204</FONT>         */<a name="line.204"></a>
<FONT color="green">205</FONT>        public void ensureAtLeast(double space, RectangleEdge edge) {<a name="line.205"></a>
<FONT color="green">206</FONT>            if (edge == RectangleEdge.TOP) {<a name="line.206"></a>
<FONT color="green">207</FONT>                if (this.top &lt; space) {<a name="line.207"></a>
<FONT color="green">208</FONT>                    this.top = space;<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>            else if (edge == RectangleEdge.BOTTOM) {<a name="line.211"></a>
<FONT color="green">212</FONT>                if (this.bottom &lt; space) {<a name="line.212"></a>
<FONT color="green">213</FONT>                    this.bottom = space;<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>            else if (edge == RectangleEdge.LEFT) {<a name="line.216"></a>
<FONT color="green">217</FONT>                if (this.left &lt; space) {<a name="line.217"></a>
<FONT color="green">218</FONT>                    this.left = space;<a name="line.218"></a>
<FONT color="green">219</FONT>                }<a name="line.219"></a>
<FONT color="green">220</FONT>            }<a name="line.220"></a>
<FONT color="green">221</FONT>            else if (edge == RectangleEdge.RIGHT) {<a name="line.221"></a>
<FONT color="green">222</FONT>                if (this.right &lt; space) {<a name="line.222"></a>
<FONT color="green">223</FONT>                    this.right = space;<a name="line.223"></a>
<FONT color="green">224</FONT>                }<a name="line.224"></a>
<FONT color="green">225</FONT>            }<a name="line.225"></a>
<FONT color="green">226</FONT>            else {<a name="line.226"></a>
<FONT color="green">227</FONT>                throw new IllegalStateException(<a name="line.227"></a>
<FONT color="green">228</FONT>                    "AxisSpace.ensureAtLeast(): unrecognised AxisLocation."<a name="line.228"></a>
<FONT color="green">229</FONT>                );<a name="line.229"></a>
<FONT color="green">230</FONT>            }<a name="line.230"></a>
<FONT color="green">231</FONT>        }<a name="line.231"></a>
<FONT color="green">232</FONT>        <a name="line.232"></a>
<FONT color="green">233</FONT>        /**<a name="line.233"></a>
<FONT color="green">234</FONT>         * Shrinks an area by the space attributes.<a name="line.234"></a>
<FONT color="green">235</FONT>         * <a name="line.235"></a>
<FONT color="green">236</FONT>         * @param area  the area to shrink.<a name="line.236"></a>
<FONT color="green">237</FONT>         * @param result  an optional carrier for the result.<a name="line.237"></a>
<FONT color="green">238</FONT>         * <a name="line.238"></a>
<FONT color="green">239</FONT>         * @return The result.<a name="line.239"></a>
<FONT color="green">240</FONT>         */<a name="line.240"></a>
<FONT color="green">241</FONT>        public Rectangle2D shrink(Rectangle2D area, Rectangle2D result) {<a name="line.241"></a>
<FONT color="green">242</FONT>            if (result == null) {<a name="line.242"></a>
<FONT color="green">243</FONT>                result = new Rectangle2D.Double();<a name="line.243"></a>
<FONT color="green">244</FONT>            }<a name="line.244"></a>
<FONT color="green">245</FONT>            result.setRect(<a name="line.245"></a>
<FONT color="green">246</FONT>                area.getX() + this.left, <a name="line.246"></a>
<FONT color="green">247</FONT>                area.getY() + this.top,<a name="line.247"></a>
<FONT color="green">248</FONT>                area.getWidth() - this.left - this.right,<a name="line.248"></a>
<FONT color="green">249</FONT>                area.getHeight() - this.top - this.bottom<a name="line.249"></a>
<FONT color="green">250</FONT>            );<a name="line.250"></a>
<FONT color="green">251</FONT>            return result;<a name="line.251"></a>
<FONT color="green">252</FONT>        }<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>         * Expands an area by the amount of space represented by this object.<a name="line.255"></a>
<FONT color="green">256</FONT>         * <a name="line.256"></a>
<FONT color="green">257</FONT>         * @param area  the area to expand.<a name="line.257"></a>
<FONT color="green">258</FONT>         * @param result  an optional carrier for the result.<a name="line.258"></a>
<FONT color="green">259</FONT>         * <a name="line.259"></a>
<FONT color="green">260</FONT>         * @return The result.<a name="line.260"></a>
<FONT color="green">261</FONT>         */<a name="line.261"></a>
<FONT color="green">262</FONT>        public Rectangle2D expand(Rectangle2D area, Rectangle2D result) {<a name="line.262"></a>
<FONT color="green">263</FONT>            if (result == null) {<a name="line.263"></a>
<FONT color="green">264</FONT>                result = new Rectangle2D.Double();<a name="line.264"></a>
<FONT color="green">265</FONT>            }<a name="line.265"></a>
<FONT color="green">266</FONT>            result.setRect(<a name="line.266"></a>
<FONT color="green">267</FONT>                area.getX() - this.left, <a name="line.267"></a>
<FONT color="green">268</FONT>                area.getY() - this.top,<a name="line.268"></a>
<FONT color="green">269</FONT>                area.getWidth() + this.left + this.right,<a name="line.269"></a>
<FONT color="green">270</FONT>                area.getHeight() + this.top + this.bottom<a name="line.270"></a>
<FONT color="green">271</FONT>            );<a name="line.271"></a>
<FONT color="green">272</FONT>            return result;<a name="line.272"></a>
<FONT color="green">273</FONT>        }<a name="line.273"></a>
<FONT color="green">274</FONT>        <a name="line.274"></a>
<FONT color="green">275</FONT>        /**<a name="line.275"></a>
<FONT color="green">276</FONT>         * Calculates the reserved area.<a name="line.276"></a>
<FONT color="green">277</FONT>         * <a name="line.277"></a>
<FONT color="green">278</FONT>         * @param area  the area.<a name="line.278"></a>
<FONT color="green">279</FONT>         * @param edge  the edge.<a name="line.279"></a>
<FONT color="green">280</FONT>         * <a name="line.280"></a>
<FONT color="green">281</FONT>         * @return The reserved area.<a name="line.281"></a>
<FONT color="green">282</FONT>         */<a name="line.282"></a>
<FONT color="green">283</FONT>        public Rectangle2D reserved(Rectangle2D area, RectangleEdge edge) {<a name="line.283"></a>
<FONT color="green">284</FONT>            Rectangle2D result = null;<a name="line.284"></a>
<FONT color="green">285</FONT>            if (edge == RectangleEdge.TOP) {<a name="line.285"></a>
<FONT color="green">286</FONT>                result = new Rectangle2D.Double(<a name="line.286"></a>
<FONT color="green">287</FONT>                    area.getX(), area.getY(), area.getWidth(), this.top<a name="line.287"></a>
<FONT color="green">288</FONT>                );<a name="line.288"></a>
<FONT color="green">289</FONT>            }<a name="line.289"></a>
<FONT color="green">290</FONT>            else if (edge == RectangleEdge.BOTTOM) {<a name="line.290"></a>
<FONT color="green">291</FONT>                result = new Rectangle2D.Double(<a name="line.291"></a>
<FONT color="green">292</FONT>                    area.getX(), area.getMaxY() - this.top,<a name="line.292"></a>
<FONT color="green">293</FONT>                    area.getWidth(), this.bottom<a name="line.293"></a>
<FONT color="green">294</FONT>                );<a name="line.294"></a>
<FONT color="green">295</FONT>            }<a name="line.295"></a>