flowarrangement.html

jfreechart最新源代码

<FONT color="green">170</FONT>         * <a name="line.170"></a>
<FONT color="green">171</FONT>         * @param container  the container.<a name="line.171"></a>
<FONT color="green">172</FONT>         * @param constraint  the constraint.<a name="line.172"></a>
<FONT color="green">173</FONT>         * @param g2  the graphics device.<a name="line.173"></a>
<FONT color="green">174</FONT>         * <a name="line.174"></a>
<FONT color="green">175</FONT>         * @return The size.<a name="line.175"></a>
<FONT color="green">176</FONT>         */<a name="line.176"></a>
<FONT color="green">177</FONT>        protected Size2D arrangeFN(BlockContainer container, Graphics2D g2,<a name="line.177"></a>
<FONT color="green">178</FONT>                                   RectangleConstraint constraint) {<a name="line.178"></a>
<FONT color="green">179</FONT>            <a name="line.179"></a>
<FONT color="green">180</FONT>            List blocks = container.getBlocks();<a name="line.180"></a>
<FONT color="green">181</FONT>            double width = constraint.getWidth();<a name="line.181"></a>
<FONT color="green">182</FONT>            <a name="line.182"></a>
<FONT color="green">183</FONT>            double x = 0.0;<a name="line.183"></a>
<FONT color="green">184</FONT>            double y = 0.0;<a name="line.184"></a>
<FONT color="green">185</FONT>            double maxHeight = 0.0;<a name="line.185"></a>
<FONT color="green">186</FONT>            List itemsInRow = new ArrayList();<a name="line.186"></a>
<FONT color="green">187</FONT>            for (int i = 0; i &lt; blocks.size(); i++) {<a name="line.187"></a>
<FONT color="green">188</FONT>                Block block = (Block) blocks.get(i);<a name="line.188"></a>
<FONT color="green">189</FONT>                Size2D size = block.arrange(g2, RectangleConstraint.NONE);<a name="line.189"></a>
<FONT color="green">190</FONT>                if (x + size.width &lt;= width) {<a name="line.190"></a>
<FONT color="green">191</FONT>                    itemsInRow.add(block);<a name="line.191"></a>
<FONT color="green">192</FONT>                    block.setBounds(<a name="line.192"></a>
<FONT color="green">193</FONT>                        new Rectangle2D.Double(x, y, size.width, size.height)<a name="line.193"></a>
<FONT color="green">194</FONT>                    );<a name="line.194"></a>
<FONT color="green">195</FONT>                    x = x + size.width + this.horizontalGap;<a name="line.195"></a>
<FONT color="green">196</FONT>                    maxHeight = Math.max(maxHeight, size.height);<a name="line.196"></a>
<FONT color="green">197</FONT>                }<a name="line.197"></a>
<FONT color="green">198</FONT>                else {<a name="line.198"></a>
<FONT color="green">199</FONT>                    if (itemsInRow.isEmpty()) {<a name="line.199"></a>
<FONT color="green">200</FONT>                        // place in this row (truncated) anyway<a name="line.200"></a>
<FONT color="green">201</FONT>                        block.setBounds(<a name="line.201"></a>
<FONT color="green">202</FONT>                            new Rectangle2D.Double(<a name="line.202"></a>
<FONT color="green">203</FONT>                                x, y, Math.min(size.width, width - x), size.height<a name="line.203"></a>
<FONT color="green">204</FONT>                            )<a name="line.204"></a>
<FONT color="green">205</FONT>                        );<a name="line.205"></a>
<FONT color="green">206</FONT>                        x = 0.0;<a name="line.206"></a>
<FONT color="green">207</FONT>                        y = y + size.height + this.verticalGap;<a name="line.207"></a>
<FONT color="green">208</FONT>                    }<a name="line.208"></a>
<FONT color="green">209</FONT>                    else {<a name="line.209"></a>
<FONT color="green">210</FONT>                        // start new row<a name="line.210"></a>
<FONT color="green">211</FONT>                        itemsInRow.clear();<a name="line.211"></a>
<FONT color="green">212</FONT>                        x = 0.0;<a name="line.212"></a>
<FONT color="green">213</FONT>                        y = y + maxHeight + this.verticalGap;<a name="line.213"></a>
<FONT color="green">214</FONT>                        maxHeight = size.height;<a name="line.214"></a>
<FONT color="green">215</FONT>                        block.setBounds(<a name="line.215"></a>
<FONT color="green">216</FONT>                            new Rectangle2D.Double(<a name="line.216"></a>
<FONT color="green">217</FONT>                                x, y, Math.min(size.width, width), size.height<a name="line.217"></a>
<FONT color="green">218</FONT>                            )<a name="line.218"></a>
<FONT color="green">219</FONT>                        );<a name="line.219"></a>
<FONT color="green">220</FONT>                        x = size.width + this.horizontalGap;<a name="line.220"></a>
<FONT color="green">221</FONT>                        itemsInRow.add(block);<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>            return new Size2D(constraint.getWidth(), y + maxHeight);  <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>        /**<a name="line.228"></a>
<FONT color="green">229</FONT>         * Arranges the blocks in the container with a fixed width and a range<a name="line.229"></a>
<FONT color="green">230</FONT>         * constraint on the height.<a name="line.230"></a>
<FONT color="green">231</FONT>         * <a name="line.231"></a>
<FONT color="green">232</FONT>         * @param container  the container.<a name="line.232"></a>
<FONT color="green">233</FONT>         * @param constraint  the constraint.<a name="line.233"></a>
<FONT color="green">234</FONT>         * @param g2  the graphics device.<a name="line.234"></a>
<FONT color="green">235</FONT>         * <a name="line.235"></a>
<FONT color="green">236</FONT>         * @return The size following the arrangement.<a name="line.236"></a>
<FONT color="green">237</FONT>         */<a name="line.237"></a>
<FONT color="green">238</FONT>        protected Size2D arrangeFR(BlockContainer container, Graphics2D g2,<a name="line.238"></a>
<FONT color="green">239</FONT>                                   RectangleConstraint constraint) {<a name="line.239"></a>
<FONT color="green">240</FONT>    <a name="line.240"></a>
<FONT color="green">241</FONT>            Size2D s = arrangeFN(container, g2, constraint);<a name="line.241"></a>
<FONT color="green">242</FONT>            if (constraint.getHeightRange().contains(s.height)) {<a name="line.242"></a>
<FONT color="green">243</FONT>                return s;   <a name="line.243"></a>
<FONT color="green">244</FONT>            }<a name="line.244"></a>
<FONT color="green">245</FONT>            else {<a name="line.245"></a>
<FONT color="green">246</FONT>                RectangleConstraint c = constraint.toFixedHeight(<a name="line.246"></a>
<FONT color="green">247</FONT>                    constraint.getHeightRange().constrain(s.getHeight())<a name="line.247"></a>
<FONT color="green">248</FONT>                );<a name="line.248"></a>
<FONT color="green">249</FONT>                return arrangeFF(container, g2, c);<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>    <a name="line.252"></a>
<FONT color="green">253</FONT>        /**<a name="line.253"></a>
<FONT color="green">254</FONT>         * Arranges the blocks in the container with the overall height and width<a name="line.254"></a>
<FONT color="green">255</FONT>         * specified as fixed constraints.<a name="line.255"></a>
<FONT color="green">256</FONT>         * <a name="line.256"></a>
<FONT color="green">257</FONT>         * @param container  the container.<a name="line.257"></a>
<FONT color="green">258</FONT>         * @param constraint  the constraint.<a name="line.258"></a>
<FONT color="green">259</FONT>         * @param g2  the graphics device.<a name="line.259"></a>
<FONT color="green">260</FONT>         * <a name="line.260"></a>
<FONT color="green">261</FONT>         * @return The size following the arrangement.<a name="line.261"></a>
<FONT color="green">262</FONT>         */<a name="line.262"></a>
<FONT color="green">263</FONT>        protected Size2D arrangeFF(BlockContainer container, Graphics2D g2,<a name="line.263"></a>
<FONT color="green">264</FONT>                                   RectangleConstraint constraint) {<a name="line.264"></a>
<FONT color="green">265</FONT>    <a name="line.265"></a>
<FONT color="green">266</FONT>            // TODO: implement this properly<a name="line.266"></a>
<FONT color="green">267</FONT>            return arrangeFN(container, g2, constraint);<a name="line.267"></a>
<FONT color="green">268</FONT>        }<a name="line.268"></a>
<FONT color="green">269</FONT>    <a name="line.269"></a>
<FONT color="green">270</FONT>        /**<a name="line.270"></a>
<FONT color="green">271</FONT>         * Arranges the blocks with the overall width and height to fit within <a name="line.271"></a>
<FONT color="green">272</FONT>         * specified ranges.<a name="line.272"></a>
<FONT color="green">273</FONT>         * <a name="line.273"></a>
<FONT color="green">274</FONT>         * @param container  the container.<a name="line.274"></a>
<FONT color="green">275</FONT>         * @param constraint  the constraint.<a name="line.275"></a>
<FONT color="green">276</FONT>         * @param g2  the graphics device.<a name="line.276"></a>
<FONT color="green">277</FONT>         * <a name="line.277"></a>
<FONT color="green">278</FONT>         * @return The size after the arrangement.<a name="line.278"></a>
<FONT color="green">279</FONT>         */<a name="line.279"></a>
<FONT color="green">280</FONT>        protected Size2D arrangeRR(BlockContainer container, Graphics2D g2,<a name="line.280"></a>
<FONT color="green">281</FONT>                                   RectangleConstraint constraint) {<a name="line.281"></a>
<FONT color="green">282</FONT>    <a name="line.282"></a>
<FONT color="green">283</FONT>            // first arrange without constraints, and see if this fits within<a name="line.283"></a>
<FONT color="green">284</FONT>            // the required ranges...<a name="line.284"></a>
<FONT color="green">285</FONT>            Size2D s1 = arrangeNN(container, g2);<a name="line.285"></a>
<FONT color="green">286</FONT>            if (constraint.getWidthRange().contains(s1.width)) {<a name="line.286"></a>
<FONT color="green">287</FONT>                return s1;  // TODO: we didn't check the height yet<a name="line.287"></a>
<FONT color="green">288</FONT>            }<a name="line.288"></a>
<FONT color="green">289</FONT>            else {<a name="line.289"></a>
<FONT color="green">290</FONT>                RectangleConstraint c = constraint.toFixedWidth(<a name="line.290"></a>
<FONT color="green">291</FONT>                    constraint.getWidthRange().getUpperBound()<a name="line.291"></a>
<FONT color="green">292</FONT>                );<a name="line.292"></a>
<FONT color="green">293</FONT>                return arrangeFR(container, g2, c);<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>
<FONT color="green">296</FONT>        <a name="line.296"></a>
<FONT color="green">297</FONT>        /**<a name="line.297"></a>
<FONT color="green">298</FONT>         * Arranges the blocks in the container with a range constraint on the<a name="line.298"></a>
<FONT color="green">299</FONT>         * width and a fixed height.<a name="line.299"></a>
<FONT color="green">300</FONT>         * <a name="line.300"></a>
<FONT color="green">301</FONT>         * @param container  the container.<a name="line.301"></a>
<FONT color="green">302</FONT>         * @param constraint  the constraint.<a name="line.302"></a>
<FONT color="green">303</FONT>         * @param g2  the graphics device.<a name="line.303"></a>
<FONT color="green">304</FONT>         * <a name="line.304"></a>
<FONT color="green">305</FONT>         * @return The size following the arrangement.<a name="line.305"></a>
<FONT color="green">306</FONT>         */<a name="line.306"></a>
<FONT color="green">307</FONT>        protected Size2D arrangeRF(BlockContainer container, Graphics2D g2,<a name="line.307"></a>
<FONT color="green">308</FONT>                                   RectangleConstraint constraint) {<a name="line.308"></a>
<FONT color="green">309</FONT>    <a name="line.309"></a>
<FONT color="green">310</FONT>            Size2D s = arrangeNF(container, g2, constraint);<a name="line.310"></a>
<FONT color="green">311</FONT>            if (constraint.getWidthRange().contains(s.width)) {<a name="line.311"></a>
<FONT color="green">312</FONT>                return s;   <a name="line.312"></a>
<FONT color="green">313</FONT>            }<a name="line.313"></a>
<FONT color="green">314</FONT>            else {<a name="line.314"></a>
<FONT color="green">315</FONT>                RectangleConstraint c = constraint.toFixedWidth(<a name="line.315"></a>
<FONT color="green">316</FONT>                    constraint.getWidthRange().constrain(s.getWidth())<a name="line.316"></a>
<FONT color="green">317</FONT>                );<a name="line.317"></a>
<FONT color="green">318</FONT>                return arrangeFF(container, g2, c);<a name="line.318"></a>
<FONT color="green">319</FONT>            }<a name="line.319"></a>
<FONT color="green">320</FONT>        }<a name="line.320"></a>
<FONT color="green">321</FONT>    <a name="line.321"></a>
<FONT color="green">322</FONT>        /**<a name="line.322"></a>
<FONT color="green">323</FONT>         * Arranges the block with a range constraint on the width, and no <a name="line.323"></a>
<FONT color="green">324</FONT>         * constraint on the height.<a name="line.324"></a>
<FONT color="green">325</FONT>         * <a name="line.325"></a>
<FONT color="green">326</FONT>         * @param container  the container.<a name="line.326"></a>
<FONT color="green">327</FONT>         * @param constraint  the constraint.<a name="line.327"></a>
<FONT color="green">328</FONT>         * @param g2  the graphics device.<a name="line.328"></a>
<FONT color="green">329</FONT>         * <a name="line.329"></a>
<FONT color="green">330</FONT>         * @return The size following the arrangement.<a name="line.330"></a>
<FONT color="green">331</FONT>         */<a name="line.331"></a>
<FONT color="green">332</FONT>        protected Size2D arrangeRN(BlockContainer container, Graphics2D g2,<a name="line.332"></a>
<FONT color="green">333</FONT>                                   RectangleConstraint constraint) {<a name="line.333"></a>
<FONT color="green">334</FONT>            // first arrange without constraints, then see if the width fits<a name="line.334"></a>
<FONT color="green">335</FONT>            // within the required range...if not, call arrangeFN() at max width<a name="line.335"></a>
<FONT color="green">336</FONT>            Size2D s1 = arrangeNN(container, g2);<a name="line.336"></a>
<FONT color="green">337</FONT>            if (constraint.getWidthRange().contains(s1.width)) {<a name="line.337"></a>
<FONT color="green">338</FONT>                return s1;   <a name="line.338"></a>
<FONT color="green">339</FONT>            }<a name="line.339"></a>
<FONT color="green">340</FONT>            else {<a name="line.340"></a>
<FONT color="green">341</FONT>                RectangleConstraint c = constraint.toFixedWidth(<a name="line.341"></a>