columnarrangement.html

jfreechart1。0。2的api。

<FONT color="green">147</FONT>                else if (h == LengthConstraintType.RANGE) {<a name="line.147"></a>
<FONT color="green">148</FONT>                    throw new RuntimeException("Not implemented.");  <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>            else if (w == LengthConstraintType.RANGE) {<a name="line.151"></a>
<FONT color="green">152</FONT>                if (h == LengthConstraintType.NONE) {<a name="line.152"></a>
<FONT color="green">153</FONT>                    throw new RuntimeException("Not implemented.");  <a name="line.153"></a>
<FONT color="green">154</FONT>                }<a name="line.154"></a>
<FONT color="green">155</FONT>                else if (h == LengthConstraintType.FIXED) {<a name="line.155"></a>
<FONT color="green">156</FONT>                    return arrangeRF(container, g2, constraint);  <a name="line.156"></a>
<FONT color="green">157</FONT>                }<a name="line.157"></a>
<FONT color="green">158</FONT>                else if (h == LengthConstraintType.RANGE) {<a name="line.158"></a>
<FONT color="green">159</FONT>                    return arrangeRR(container, g2, constraint);  <a name="line.159"></a>
<FONT color="green">160</FONT>                }<a name="line.160"></a>
<FONT color="green">161</FONT>            }<a name="line.161"></a>
<FONT color="green">162</FONT>            return new Size2D();  // TODO: complete this<a name="line.162"></a>
<FONT color="green">163</FONT>            <a name="line.163"></a>
<FONT color="green">164</FONT>        }<a name="line.164"></a>
<FONT color="green">165</FONT>    <a name="line.165"></a>
<FONT color="green">166</FONT>        /**<a name="line.166"></a>
<FONT color="green">167</FONT>         * Calculates and sets the bounds of all the items in the specified <a name="line.167"></a>
<FONT color="green">168</FONT>         * container, subject to the given constraint.  The &lt;code&gt;Graphics2D&lt;/code&gt;<a name="line.168"></a>
<FONT color="green">169</FONT>         * can be used by some items (particularly items containing text) to <a name="line.169"></a>
<FONT color="green">170</FONT>         * calculate sizing parameters.<a name="line.170"></a>
<FONT color="green">171</FONT>         * <a name="line.171"></a>
<FONT color="green">172</FONT>         * @param container  the container whose items are being arranged.<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>         * @param constraint  the size constraint.<a name="line.174"></a>
<FONT color="green">175</FONT>         * <a name="line.175"></a>
<FONT color="green">176</FONT>         * @return The container size after the arrangement.<a name="line.176"></a>
<FONT color="green">177</FONT>         */<a name="line.177"></a>
<FONT color="green">178</FONT>        protected Size2D arrangeFF(BlockContainer container, Graphics2D g2,<a name="line.178"></a>
<FONT color="green">179</FONT>                                   RectangleConstraint constraint) {<a name="line.179"></a>
<FONT color="green">180</FONT>            // TODO: implement properly<a name="line.180"></a>
<FONT color="green">181</FONT>            return arrangeNF(container, g2, constraint);<a name="line.181"></a>
<FONT color="green">182</FONT>        }<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>         * Calculates and sets the bounds of all the items in the specified <a name="line.185"></a>
<FONT color="green">186</FONT>         * container, subject to the given constraint.  The &lt;code&gt;Graphics2D&lt;/code&gt;<a name="line.186"></a>
<FONT color="green">187</FONT>         * can be used by some items (particularly items containing text) to <a name="line.187"></a>
<FONT color="green">188</FONT>         * calculate sizing parameters.<a name="line.188"></a>
<FONT color="green">189</FONT>         * <a name="line.189"></a>
<FONT color="green">190</FONT>         * @param container  the container whose items are being arranged.<a name="line.190"></a>
<FONT color="green">191</FONT>         * @param constraint  the size constraint.<a name="line.191"></a>
<FONT color="green">192</FONT>         * @param g2  the graphics device.<a name="line.192"></a>
<FONT color="green">193</FONT>         * <a name="line.193"></a>
<FONT color="green">194</FONT>         * @return The container size after the arrangement.<a name="line.194"></a>
<FONT color="green">195</FONT>         */<a name="line.195"></a>
<FONT color="green">196</FONT>        protected Size2D arrangeNF(BlockContainer container, Graphics2D g2,<a name="line.196"></a>
<FONT color="green">197</FONT>                                   RectangleConstraint constraint) {<a name="line.197"></a>
<FONT color="green">198</FONT>        <a name="line.198"></a>
<FONT color="green">199</FONT>            List blocks = container.getBlocks();<a name="line.199"></a>
<FONT color="green">200</FONT>            <a name="line.200"></a>
<FONT color="green">201</FONT>            double height = constraint.getHeight();<a name="line.201"></a>
<FONT color="green">202</FONT>            if (height &lt;= 0.0) {<a name="line.202"></a>
<FONT color="green">203</FONT>                height = Double.POSITIVE_INFINITY;<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>            double x = 0.0;<a name="line.206"></a>
<FONT color="green">207</FONT>            double y = 0.0;<a name="line.207"></a>
<FONT color="green">208</FONT>            double maxWidth = 0.0;<a name="line.208"></a>
<FONT color="green">209</FONT>            List itemsInColumn = new ArrayList();<a name="line.209"></a>
<FONT color="green">210</FONT>            for (int i = 0; i &lt; blocks.size(); i++) {<a name="line.210"></a>
<FONT color="green">211</FONT>                Block block = (Block) blocks.get(i);<a name="line.211"></a>
<FONT color="green">212</FONT>                Size2D size = block.arrange(g2, RectangleConstraint.NONE);<a name="line.212"></a>
<FONT color="green">213</FONT>                if (y + size.height &lt;= height) {<a name="line.213"></a>
<FONT color="green">214</FONT>                    itemsInColumn.add(block);<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(x, y, size.width, size.height)<a name="line.216"></a>
<FONT color="green">217</FONT>                    );<a name="line.217"></a>
<FONT color="green">218</FONT>                    y = y + size.height + this.verticalGap;<a name="line.218"></a>
<FONT color="green">219</FONT>                    maxWidth = Math.max(maxWidth, size.width);<a name="line.219"></a>
<FONT color="green">220</FONT>                }<a name="line.220"></a>
<FONT color="green">221</FONT>                else {<a name="line.221"></a>
<FONT color="green">222</FONT>                    if (itemsInColumn.isEmpty()) {<a name="line.222"></a>
<FONT color="green">223</FONT>                        // place in this column (truncated) anyway<a name="line.223"></a>
<FONT color="green">224</FONT>                        block.setBounds(<a name="line.224"></a>
<FONT color="green">225</FONT>                            new Rectangle2D.Double(<a name="line.225"></a>
<FONT color="green">226</FONT>                                x, y, size.width, Math.min(size.height, height - y)<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>                        y = 0.0;<a name="line.229"></a>
<FONT color="green">230</FONT>                        x = x + size.width + this.horizontalGap;<a name="line.230"></a>
<FONT color="green">231</FONT>                    }<a name="line.231"></a>
<FONT color="green">232</FONT>                    else {<a name="line.232"></a>
<FONT color="green">233</FONT>                        // start new column<a name="line.233"></a>
<FONT color="green">234</FONT>                        itemsInColumn.clear();<a name="line.234"></a>
<FONT color="green">235</FONT>                        x = x + maxWidth + this.horizontalGap;<a name="line.235"></a>
<FONT color="green">236</FONT>                        y = 0.0;<a name="line.236"></a>
<FONT color="green">237</FONT>                        maxWidth = size.width;<a name="line.237"></a>
<FONT color="green">238</FONT>                        block.setBounds(<a name="line.238"></a>
<FONT color="green">239</FONT>                            new Rectangle2D.Double(<a name="line.239"></a>
<FONT color="green">240</FONT>                                x, y, size.width, Math.min(size.height, height)<a name="line.240"></a>
<FONT color="green">241</FONT>                            )<a name="line.241"></a>
<FONT color="green">242</FONT>                        );<a name="line.242"></a>
<FONT color="green">243</FONT>                        y = size.height + this.verticalGap;<a name="line.243"></a>
<FONT color="green">244</FONT>                        itemsInColumn.add(block);<a name="line.244"></a>
<FONT color="green">245</FONT>                    }<a name="line.245"></a>
<FONT color="green">246</FONT>                }<a name="line.246"></a>
<FONT color="green">247</FONT>            }<a name="line.247"></a>
<FONT color="green">248</FONT>            return new Size2D(x + maxWidth, constraint.getHeight());  <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>        protected Size2D arrangeRR(BlockContainer container, Graphics2D g2,<a name="line.251"></a>
<FONT color="green">252</FONT>                                   RectangleConstraint constraint) {<a name="line.252"></a>
<FONT color="green">253</FONT>    <a name="line.253"></a>
<FONT color="green">254</FONT>            // first arrange without constraints, and see if this fits within<a name="line.254"></a>
<FONT color="green">255</FONT>            // the required ranges...<a name="line.255"></a>
<FONT color="green">256</FONT>            Size2D s1 = arrangeNN(container, g2);<a name="line.256"></a>
<FONT color="green">257</FONT>            if (constraint.getHeightRange().contains(s1.height)) {<a name="line.257"></a>
<FONT color="green">258</FONT>                return s1;  // TODO: we didn't check the width yet<a name="line.258"></a>
<FONT color="green">259</FONT>            }<a name="line.259"></a>
<FONT color="green">260</FONT>            else {<a name="line.260"></a>
<FONT color="green">261</FONT>                RectangleConstraint c = constraint.toFixedHeight(<a name="line.261"></a>
<FONT color="green">262</FONT>                    constraint.getHeightRange().getUpperBound()<a name="line.262"></a>
<FONT color="green">263</FONT>                );<a name="line.263"></a>
<FONT color="green">264</FONT>                return arrangeRF(container, g2, c);<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>         * Arranges the blocks in the container using a fixed height and a<a name="line.269"></a>
<FONT color="green">270</FONT>         * range for the width.<a name="line.270"></a>
<FONT color="green">271</FONT>         * <a name="line.271"></a>
<FONT color="green">272</FONT>         * @param container  the container.<a name="line.272"></a>
<FONT color="green">273</FONT>         * @param g2  the graphics device.<a name="line.273"></a>
<FONT color="green">274</FONT>         * @param constraint  the constraint.<a name="line.274"></a>
<FONT color="green">275</FONT>         * <a name="line.275"></a>
<FONT color="green">276</FONT>         * @return The size of the container after arrangement.<a name="line.276"></a>
<FONT color="green">277</FONT>         */<a name="line.277"></a>
<FONT color="green">278</FONT>        protected Size2D arrangeRF(BlockContainer container, Graphics2D g2,<a name="line.278"></a>
<FONT color="green">279</FONT>                                   RectangleConstraint constraint) {<a name="line.279"></a>
<FONT color="green">280</FONT>    <a name="line.280"></a>
<FONT color="green">281</FONT>            Size2D s = arrangeNF(container, g2, constraint);<a name="line.281"></a>
<FONT color="green">282</FONT>            if (constraint.getWidthRange().contains(s.width)) {<a name="line.282"></a>
<FONT color="green">283</FONT>                return s;   <a name="line.283"></a>
<FONT color="green">284</FONT>            }<a name="line.284"></a>
<FONT color="green">285</FONT>            else {<a name="line.285"></a>
<FONT color="green">286</FONT>                RectangleConstraint c = constraint.toFixedWidth(<a name="line.286"></a>
<FONT color="green">287</FONT>                    constraint.getWidthRange().constrain(s.getWidth())<a name="line.287"></a>
<FONT color="green">288</FONT>                );<a name="line.288"></a>
<FONT color="green">289</FONT>                return arrangeFF(container, g2, c);<a name="line.289"></a>
<FONT color="green">290</FONT>            }<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>        /**<a name="line.293"></a>
<FONT color="green">294</FONT>         * Arranges the blocks without any constraints.  This puts all blocks<a name="line.294"></a>
<FONT color="green">295</FONT>         * into a single column.<a name="line.295"></a>