xydifferencerenderer.html

jfreechart1。0。2的api。

<FONT color="green">135</FONT>         * @param positivePaint  the highlight color for positive differences <a name="line.135"></a>
<FONT color="green">136</FONT>         *                       (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.136"></a>
<FONT color="green">137</FONT>         * @param negativePaint  the highlight color for negative differences <a name="line.137"></a>
<FONT color="green">138</FONT>         *                       (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.138"></a>
<FONT color="green">139</FONT>         * @param shapes  draw shapes?<a name="line.139"></a>
<FONT color="green">140</FONT>         */<a name="line.140"></a>
<FONT color="green">141</FONT>        public XYDifferenceRenderer(Paint positivePaint, Paint negativePaint, <a name="line.141"></a>
<FONT color="green">142</FONT>                                    boolean shapes) {<a name="line.142"></a>
<FONT color="green">143</FONT>            if (positivePaint == null) {<a name="line.143"></a>
<FONT color="green">144</FONT>                throw new IllegalArgumentException(<a name="line.144"></a>
<FONT color="green">145</FONT>                        "Null 'positivePaint' argument.");<a name="line.145"></a>
<FONT color="green">146</FONT>            }<a name="line.146"></a>
<FONT color="green">147</FONT>            if (negativePaint == null) {<a name="line.147"></a>
<FONT color="green">148</FONT>                throw new IllegalArgumentException(<a name="line.148"></a>
<FONT color="green">149</FONT>                        "Null 'negativePaint' argument.");<a name="line.149"></a>
<FONT color="green">150</FONT>            }<a name="line.150"></a>
<FONT color="green">151</FONT>            this.positivePaint = positivePaint;<a name="line.151"></a>
<FONT color="green">152</FONT>            this.negativePaint = negativePaint;<a name="line.152"></a>
<FONT color="green">153</FONT>            this.shapesVisible = shapes;<a name="line.153"></a>
<FONT color="green">154</FONT>            this.legendLine = new Line2D.Double(-7.0, 0.0, 7.0, 0.0);<a name="line.154"></a>
<FONT color="green">155</FONT>        }<a name="line.155"></a>
<FONT color="green">156</FONT>    <a name="line.156"></a>
<FONT color="green">157</FONT>        /**<a name="line.157"></a>
<FONT color="green">158</FONT>         * Returns the paint used to highlight positive differences.<a name="line.158"></a>
<FONT color="green">159</FONT>         *<a name="line.159"></a>
<FONT color="green">160</FONT>         * @return The paint (never &lt;code&gt;null&lt;/code&gt;).<a name="line.160"></a>
<FONT color="green">161</FONT>         */<a name="line.161"></a>
<FONT color="green">162</FONT>        public Paint getPositivePaint() {<a name="line.162"></a>
<FONT color="green">163</FONT>            return this.positivePaint;<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>         * Sets the paint used to highlight positive differences.<a name="line.167"></a>
<FONT color="green">168</FONT>         * <a name="line.168"></a>
<FONT color="green">169</FONT>         * @param paint  the paint (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.169"></a>
<FONT color="green">170</FONT>         */<a name="line.170"></a>
<FONT color="green">171</FONT>        public void setPositivePaint(Paint paint) {<a name="line.171"></a>
<FONT color="green">172</FONT>            if (paint == null) {<a name="line.172"></a>
<FONT color="green">173</FONT>                throw new IllegalArgumentException("Null 'paint' argument.");<a name="line.173"></a>
<FONT color="green">174</FONT>            }<a name="line.174"></a>
<FONT color="green">175</FONT>            this.positivePaint = paint;<a name="line.175"></a>
<FONT color="green">176</FONT>            notifyListeners(new RendererChangeEvent(this));<a name="line.176"></a>
<FONT color="green">177</FONT>        }<a name="line.177"></a>
<FONT color="green">178</FONT>    <a name="line.178"></a>
<FONT color="green">179</FONT>        /**<a name="line.179"></a>
<FONT color="green">180</FONT>         * Returns the paint used to highlight negative differences.<a name="line.180"></a>
<FONT color="green">181</FONT>         *<a name="line.181"></a>
<FONT color="green">182</FONT>         * @return The paint (never &lt;code&gt;null&lt;/code&gt;).<a name="line.182"></a>
<FONT color="green">183</FONT>         */<a name="line.183"></a>
<FONT color="green">184</FONT>        public Paint getNegativePaint() {<a name="line.184"></a>
<FONT color="green">185</FONT>            return this.negativePaint;<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 name="line.188"></a>
<FONT color="green">189</FONT>         * Sets the paint used to highlight negative differences.<a name="line.189"></a>
<FONT color="green">190</FONT>         * <a name="line.190"></a>
<FONT color="green">191</FONT>         * @param paint  the paint (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.191"></a>
<FONT color="green">192</FONT>         */<a name="line.192"></a>
<FONT color="green">193</FONT>        public void setNegativePaint(Paint paint) {<a name="line.193"></a>
<FONT color="green">194</FONT>            if (paint == null) {<a name="line.194"></a>
<FONT color="green">195</FONT>                throw new IllegalArgumentException("Null 'paint' argument.");<a name="line.195"></a>
<FONT color="green">196</FONT>            }<a name="line.196"></a>
<FONT color="green">197</FONT>            this.negativePaint = paint;<a name="line.197"></a>
<FONT color="green">198</FONT>            notifyListeners(new RendererChangeEvent(this));<a name="line.198"></a>
<FONT color="green">199</FONT>        }<a name="line.199"></a>
<FONT color="green">200</FONT>    <a name="line.200"></a>
<FONT color="green">201</FONT>        /**<a name="line.201"></a>
<FONT color="green">202</FONT>         * Returns a flag that controls whether or not shapes are drawn for each <a name="line.202"></a>
<FONT color="green">203</FONT>         * data value.<a name="line.203"></a>
<FONT color="green">204</FONT>         * <a name="line.204"></a>
<FONT color="green">205</FONT>         * @return A boolean.<a name="line.205"></a>
<FONT color="green">206</FONT>         */<a name="line.206"></a>
<FONT color="green">207</FONT>        public boolean getShapesVisible() {<a name="line.207"></a>
<FONT color="green">208</FONT>            return this.shapesVisible;<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>        /**<a name="line.211"></a>
<FONT color="green">212</FONT>         * Sets a flag that controls whether or not shapes are drawn for each <a name="line.212"></a>
<FONT color="green">213</FONT>         * data value.<a name="line.213"></a>
<FONT color="green">214</FONT>         * <a name="line.214"></a>
<FONT color="green">215</FONT>         * @param flag  the flag.<a name="line.215"></a>
<FONT color="green">216</FONT>         */<a name="line.216"></a>
<FONT color="green">217</FONT>        public void setShapesVisible(boolean flag) {<a name="line.217"></a>
<FONT color="green">218</FONT>            this.shapesVisible = flag;<a name="line.218"></a>
<FONT color="green">219</FONT>            notifyListeners(new RendererChangeEvent(this));<a name="line.219"></a>
<FONT color="green">220</FONT>        }<a name="line.220"></a>
<FONT color="green">221</FONT>        <a name="line.221"></a>
<FONT color="green">222</FONT>        /**<a name="line.222"></a>
<FONT color="green">223</FONT>         * Returns the shape used to represent a line in the legend.<a name="line.223"></a>
<FONT color="green">224</FONT>         * <a name="line.224"></a>
<FONT color="green">225</FONT>         * @return The legend line (never &lt;code&gt;null&lt;/code&gt;).<a name="line.225"></a>
<FONT color="green">226</FONT>         */<a name="line.226"></a>
<FONT color="green">227</FONT>        public Shape getLegendLine() {<a name="line.227"></a>
<FONT color="green">228</FONT>            return this.legendLine;   <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>         * Sets the shape used as a line in each legend item and sends a <a name="line.232"></a>
<FONT color="green">233</FONT>         * {@link RendererChangeEvent} to all registered listeners.<a name="line.233"></a>
<FONT color="green">234</FONT>         * <a name="line.234"></a>
<FONT color="green">235</FONT>         * @param line  the line (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.235"></a>
<FONT color="green">236</FONT>         */<a name="line.236"></a>
<FONT color="green">237</FONT>        public void setLegendLine(Shape line) {<a name="line.237"></a>
<FONT color="green">238</FONT>            if (line == null) {<a name="line.238"></a>
<FONT color="green">239</FONT>                throw new IllegalArgumentException("Null 'line' argument.");   <a name="line.239"></a>
<FONT color="green">240</FONT>            }<a name="line.240"></a>
<FONT color="green">241</FONT>            this.legendLine = line;<a name="line.241"></a>
<FONT color="green">242</FONT>            notifyListeners(new RendererChangeEvent(this));<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>         * Initialises the renderer and returns a state object that should be <a name="line.246"></a>
<FONT color="green">247</FONT>         * passed to subsequent calls to the drawItem() method.  This method will <a name="line.247"></a>
<FONT color="green">248</FONT>         * be called before the first item is rendered, giving the renderer an <a name="line.248"></a>
<FONT color="green">249</FONT>         * opportunity to initialise any state information it wants to maintain.  <a name="line.249"></a>
<FONT color="green">250</FONT>         * The renderer can do nothing if it chooses.<a name="line.250"></a>
<FONT color="green">251</FONT>         *<a name="line.251"></a>
<FONT color="green">252</FONT>         * @param g2  the graphics device.<a name="line.252"></a>
<FONT color="green">253</FONT>         * @param dataArea  the area inside the axes.<a name="line.253"></a>
<FONT color="green">254</FONT>         * @param plot  the plot.<a name="line.254"></a>
<FONT color="green">255</FONT>         * @param data  the data.<a name="line.255"></a>
<FONT color="green">256</FONT>         * @param info  an optional info collection object to return data back to <a name="line.256"></a>
<FONT color="green">257</FONT>         *              the caller.<a name="line.257"></a>
<FONT color="green">258</FONT>         *<a name="line.258"></a>
<FONT color="green">259</FONT>         * @return A state object.<a name="line.259"></a>
<FONT color="green">260</FONT>         */<a name="line.260"></a>
<FONT color="green">261</FONT>        public XYItemRendererState initialise(Graphics2D g2,<a name="line.261"></a>
<FONT color="green">262</FONT>                                              Rectangle2D dataArea,<a name="line.262"></a>
<FONT color="green">263</FONT>                                              XYPlot plot,<a name="line.263"></a>
<FONT color="green">264</FONT>                                              XYDataset data,<a name="line.264"></a>
<FONT color="green">265</FONT>                                              PlotRenderingInfo info) {<a name="line.265"></a>
<FONT color="green">266</FONT>    <a name="line.266"></a>
<FONT color="green">267</FONT>            return super.initialise(g2, dataArea, plot, data, info);<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>        /**<a name="line.271"></a>