blockcontainer.html

jfreechart1。0。2的api。

<FONT color="green">174</FONT>         * Arranges the contents of the block, within the given constraints, and <a name="line.174"></a>
<FONT color="green">175</FONT>         * returns the block size.<a name="line.175"></a>
<FONT color="green">176</FONT>         * <a name="line.176"></a>
<FONT color="green">177</FONT>         * @param g2  the graphics device.<a name="line.177"></a>
<FONT color="green">178</FONT>         * @param constraint  the constraint (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.178"></a>
<FONT color="green">179</FONT>         * <a name="line.179"></a>
<FONT color="green">180</FONT>         * @return The block size (in Java2D units, never &lt;code&gt;null&lt;/code&gt;).<a name="line.180"></a>
<FONT color="green">181</FONT>         */<a name="line.181"></a>
<FONT color="green">182</FONT>        public Size2D arrange(Graphics2D g2, RectangleConstraint constraint) {<a name="line.182"></a>
<FONT color="green">183</FONT>            return this.arrangement.arrange(this, g2, constraint);<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>         * Draws the container and all the blocks within it.<a name="line.187"></a>
<FONT color="green">188</FONT>         * <a name="line.188"></a>
<FONT color="green">189</FONT>         * @param g2  the graphics device.<a name="line.189"></a>
<FONT color="green">190</FONT>         * @param area  the area.<a name="line.190"></a>
<FONT color="green">191</FONT>         */<a name="line.191"></a>
<FONT color="green">192</FONT>        public void draw(Graphics2D g2, Rectangle2D area) {<a name="line.192"></a>
<FONT color="green">193</FONT>            draw(g2, area, null);<a name="line.193"></a>
<FONT color="green">194</FONT>        }<a name="line.194"></a>
<FONT color="green">195</FONT>        <a name="line.195"></a>
<FONT color="green">196</FONT>        /**<a name="line.196"></a>
<FONT color="green">197</FONT>         * Draws the block within the specified area.<a name="line.197"></a>
<FONT color="green">198</FONT>         * <a name="line.198"></a>
<FONT color="green">199</FONT>         * @param g2  the graphics device.<a name="line.199"></a>
<FONT color="green">200</FONT>         * @param area  the area.<a name="line.200"></a>
<FONT color="green">201</FONT>         * @param params  passed on to blocks within the container <a name="line.201"></a>
<FONT color="green">202</FONT>         *                (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.202"></a>
<FONT color="green">203</FONT>         * <a name="line.203"></a>
<FONT color="green">204</FONT>         * @return An instance of {@link EntityBlockResult}, or &lt;code&gt;null&lt;/code&gt;.<a name="line.204"></a>
<FONT color="green">205</FONT>         */<a name="line.205"></a>
<FONT color="green">206</FONT>        public Object draw(Graphics2D g2, Rectangle2D area, Object params) {<a name="line.206"></a>
<FONT color="green">207</FONT>            // check if we need to collect chart entities from the container<a name="line.207"></a>
<FONT color="green">208</FONT>            EntityBlockParams ebp = null;<a name="line.208"></a>
<FONT color="green">209</FONT>            StandardEntityCollection sec = null;<a name="line.209"></a>
<FONT color="green">210</FONT>            if (params instanceof EntityBlockParams) {<a name="line.210"></a>
<FONT color="green">211</FONT>                ebp = (EntityBlockParams) params;<a name="line.211"></a>
<FONT color="green">212</FONT>                if (ebp.getGenerateEntities()) {<a name="line.212"></a>
<FONT color="green">213</FONT>                    sec = new StandardEntityCollection();   <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>            Rectangle2D contentArea = (Rectangle2D) area.clone();<a name="line.216"></a>
<FONT color="green">217</FONT>            contentArea = trimMargin(contentArea);<a name="line.217"></a>
<FONT color="green">218</FONT>            drawBorder(g2, contentArea);<a name="line.218"></a>
<FONT color="green">219</FONT>            contentArea = trimBorder(contentArea);<a name="line.219"></a>
<FONT color="green">220</FONT>            contentArea = trimPadding(contentArea);<a name="line.220"></a>
<FONT color="green">221</FONT>            Iterator iterator = this.blocks.iterator();<a name="line.221"></a>
<FONT color="green">222</FONT>            while (iterator.hasNext()) {<a name="line.222"></a>
<FONT color="green">223</FONT>                Block block = (Block) iterator.next();<a name="line.223"></a>
<FONT color="green">224</FONT>                Rectangle2D bounds = block.getBounds();<a name="line.224"></a>
<FONT color="green">225</FONT>                Rectangle2D drawArea = new Rectangle2D.Double(bounds.getX() <a name="line.225"></a>
<FONT color="green">226</FONT>                        + area.getX(), bounds.getY() + area.getY(), <a name="line.226"></a>
<FONT color="green">227</FONT>                        bounds.getWidth(), bounds.getHeight());<a name="line.227"></a>
<FONT color="green">228</FONT>                Object r = block.draw(g2, drawArea, params);<a name="line.228"></a>
<FONT color="green">229</FONT>                if (sec != null) {<a name="line.229"></a>
<FONT color="green">230</FONT>                    if (r instanceof EntityBlockResult) {<a name="line.230"></a>
<FONT color="green">231</FONT>                        EntityBlockResult ebr = (EntityBlockResult) r;<a name="line.231"></a>
<FONT color="green">232</FONT>                        EntityCollection ec = ebr.getEntityCollection();<a name="line.232"></a>
<FONT color="green">233</FONT>                        sec.addAll(ec);<a name="line.233"></a>
<FONT color="green">234</FONT>                    }<a name="line.234"></a>
<FONT color="green">235</FONT>                }<a name="line.235"></a>
<FONT color="green">236</FONT>            }<a name="line.236"></a>
<FONT color="green">237</FONT>            BlockResult result = null;<a name="line.237"></a>
<FONT color="green">238</FONT>            if (sec != null) {<a name="line.238"></a>
<FONT color="green">239</FONT>                result = new BlockResult();<a name="line.239"></a>
<FONT color="green">240</FONT>                result.setEntityCollection(sec);<a name="line.240"></a>
<FONT color="green">241</FONT>            }<a name="line.241"></a>
<FONT color="green">242</FONT>            return result;<a name="line.242"></a>
<FONT color="green">243</FONT>        }<a name="line.243"></a>
<FONT color="green">244</FONT>    <a name="line.244"></a>
<FONT color="green">245</FONT>        /**<a name="line.245"></a>
<FONT color="green">246</FONT>         * Tests this container for equality with an arbitrary object.<a name="line.246"></a>
<FONT color="green">247</FONT>         * <a name="line.247"></a>
<FONT color="green">248</FONT>         * @param obj  the object (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.248"></a>
<FONT color="green">249</FONT>         * <a name="line.249"></a>
<FONT color="green">250</FONT>         * @return A boolean.<a name="line.250"></a>
<FONT color="green">251</FONT>         */<a name="line.251"></a>
<FONT color="green">252</FONT>        public boolean equals(Object obj) {<a name="line.252"></a>
<FONT color="green">253</FONT>            if (obj == this) {<a name="line.253"></a>
<FONT color="green">254</FONT>                return true;   <a name="line.254"></a>
<FONT color="green">255</FONT>            }<a name="line.255"></a>
<FONT color="green">256</FONT>            if (!(obj instanceof BlockContainer)) {<a name="line.256"></a>
<FONT color="green">257</FONT>                return false;   <a name="line.257"></a>
<FONT color="green">258</FONT>            }<a name="line.258"></a>
<FONT color="green">259</FONT>            if (!super.equals(obj)) {<a name="line.259"></a>
<FONT color="green">260</FONT>                return false;   <a name="line.260"></a>
<FONT color="green">261</FONT>            }<a name="line.261"></a>
<FONT color="green">262</FONT>            BlockContainer that = (BlockContainer) obj;<a name="line.262"></a>
<FONT color="green">263</FONT>            if (!this.arrangement.equals(that.arrangement)) {<a name="line.263"></a>
<FONT color="green">264</FONT>                return false;   <a name="line.264"></a>
<FONT color="green">265</FONT>            }<a name="line.265"></a>
<FONT color="green">266</FONT>            if (!this.blocks.equals(that.blocks)) {<a name="line.266"></a>
<FONT color="green">267</FONT>                return false;   <a name="line.267"></a>
<FONT color="green">268</FONT>            }<a name="line.268"></a>
<FONT color="green">269</FONT>            return true;<a name="line.269"></a>
<FONT color="green">270</FONT>        }<a name="line.270"></a>
<FONT color="green">271</FONT>        <a name="line.271"></a>
<FONT color="green">272</FONT>        /**<a name="line.272"></a>
<FONT color="green">273</FONT>         * Returns a clone of the container.<a name="line.273"></a>
<FONT color="green">274</FONT>         * <a name="line.274"></a>
<FONT color="green">275</FONT>         * @return A clone.<a name="line.275"></a>
<FONT color="green">276</FONT>         * <a name="line.276"></a>
<FONT color="green">277</FONT>         * @throws CloneNotSupportedException if there is a problem cloning.<a name="line.277"></a>
<FONT color="green">278</FONT>         */<a name="line.278"></a>
<FONT color="green">279</FONT>        public Object clone() throws CloneNotSupportedException {<a name="line.279"></a>
<FONT color="green">280</FONT>            Object clone = (BlockContainer) super.clone();<a name="line.280"></a>
<FONT color="green">281</FONT>            // TODO : complete this<a name="line.281"></a>
<FONT color="green">282</FONT>            return clone;<a name="line.282"></a>
<FONT color="green">283</FONT>        }<a name="line.283"></a>
<FONT color="green">284</FONT>        <a name="line.284"></a>
<FONT color="green">285</FONT>    }<a name="line.285"></a>




























































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