pieplot.html

jfreechart最新源代码

<FONT color="green">139</FONT>     */<a name="line.139"></a>
<FONT color="green">140</FONT>    <a name="line.140"></a>
<FONT color="green">141</FONT>    package org.jfree.chart.plot;<a name="line.141"></a>
<FONT color="green">142</FONT>    <a name="line.142"></a>
<FONT color="green">143</FONT>    import java.awt.AlphaComposite;<a name="line.143"></a>
<FONT color="green">144</FONT>    import java.awt.BasicStroke;<a name="line.144"></a>
<FONT color="green">145</FONT>    import java.awt.Color;<a name="line.145"></a>
<FONT color="green">146</FONT>    import java.awt.Composite;<a name="line.146"></a>
<FONT color="green">147</FONT>    import java.awt.Font;<a name="line.147"></a>
<FONT color="green">148</FONT>    import java.awt.Graphics2D;<a name="line.148"></a>
<FONT color="green">149</FONT>    import java.awt.Paint;<a name="line.149"></a>
<FONT color="green">150</FONT>    import java.awt.Shape;<a name="line.150"></a>
<FONT color="green">151</FONT>    import java.awt.Stroke;<a name="line.151"></a>
<FONT color="green">152</FONT>    import java.awt.geom.Arc2D;<a name="line.152"></a>
<FONT color="green">153</FONT>    import java.awt.geom.Line2D;<a name="line.153"></a>
<FONT color="green">154</FONT>    import java.awt.geom.Point2D;<a name="line.154"></a>
<FONT color="green">155</FONT>    import java.awt.geom.Rectangle2D;<a name="line.155"></a>
<FONT color="green">156</FONT>    import java.io.IOException;<a name="line.156"></a>
<FONT color="green">157</FONT>    import java.io.ObjectInputStream;<a name="line.157"></a>
<FONT color="green">158</FONT>    import java.io.ObjectOutputStream;<a name="line.158"></a>
<FONT color="green">159</FONT>    import java.io.Serializable;<a name="line.159"></a>
<FONT color="green">160</FONT>    import java.util.Iterator;<a name="line.160"></a>
<FONT color="green">161</FONT>    import java.util.List;<a name="line.161"></a>
<FONT color="green">162</FONT>    import java.util.ResourceBundle;<a name="line.162"></a>
<FONT color="green">163</FONT>    <a name="line.163"></a>
<FONT color="green">164</FONT>    import org.jfree.chart.LegendItem;<a name="line.164"></a>
<FONT color="green">165</FONT>    import org.jfree.chart.LegendItemCollection;<a name="line.165"></a>
<FONT color="green">166</FONT>    import org.jfree.chart.entity.EntityCollection;<a name="line.166"></a>
<FONT color="green">167</FONT>    import org.jfree.chart.entity.PieSectionEntity;<a name="line.167"></a>
<FONT color="green">168</FONT>    import org.jfree.chart.event.PlotChangeEvent;<a name="line.168"></a>
<FONT color="green">169</FONT>    import org.jfree.chart.labels.PieSectionLabelGenerator;<a name="line.169"></a>
<FONT color="green">170</FONT>    import org.jfree.chart.labels.PieToolTipGenerator;<a name="line.170"></a>
<FONT color="green">171</FONT>    import org.jfree.chart.labels.StandardPieSectionLabelGenerator;<a name="line.171"></a>
<FONT color="green">172</FONT>    import org.jfree.chart.urls.PieURLGenerator;<a name="line.172"></a>
<FONT color="green">173</FONT>    import org.jfree.data.DefaultKeyedValues;<a name="line.173"></a>
<FONT color="green">174</FONT>    import org.jfree.data.KeyedValues;<a name="line.174"></a>
<FONT color="green">175</FONT>    import org.jfree.data.general.DatasetChangeEvent;<a name="line.175"></a>
<FONT color="green">176</FONT>    import org.jfree.data.general.DatasetUtilities;<a name="line.176"></a>
<FONT color="green">177</FONT>    import org.jfree.data.general.PieDataset;<a name="line.177"></a>
<FONT color="green">178</FONT>    import org.jfree.io.SerialUtilities;<a name="line.178"></a>
<FONT color="green">179</FONT>    import org.jfree.text.G2TextMeasurer;<a name="line.179"></a>
<FONT color="green">180</FONT>    import org.jfree.text.TextBlock;<a name="line.180"></a>
<FONT color="green">181</FONT>    import org.jfree.text.TextBox;<a name="line.181"></a>
<FONT color="green">182</FONT>    import org.jfree.text.TextUtilities;<a name="line.182"></a>
<FONT color="green">183</FONT>    import org.jfree.ui.RectangleAnchor;<a name="line.183"></a>
<FONT color="green">184</FONT>    import org.jfree.ui.RectangleInsets;<a name="line.184"></a>
<FONT color="green">185</FONT>    import org.jfree.util.ObjectList;<a name="line.185"></a>
<FONT color="green">186</FONT>    import org.jfree.util.ObjectUtilities;<a name="line.186"></a>
<FONT color="green">187</FONT>    import org.jfree.util.PaintList;<a name="line.187"></a>
<FONT color="green">188</FONT>    import org.jfree.util.PaintUtilities;<a name="line.188"></a>
<FONT color="green">189</FONT>    import org.jfree.util.Rotation;<a name="line.189"></a>
<FONT color="green">190</FONT>    import org.jfree.util.ShapeUtilities;<a name="line.190"></a>
<FONT color="green">191</FONT>    import org.jfree.util.StrokeList;<a name="line.191"></a>
<FONT color="green">192</FONT>    <a name="line.192"></a>
<FONT color="green">193</FONT>    /**<a name="line.193"></a>
<FONT color="green">194</FONT>     * A plot that displays data in the form of a pie chart, using data from any <a name="line.194"></a>
<FONT color="green">195</FONT>     * class that implements the {@link PieDataset} interface.<a name="line.195"></a>
<FONT color="green">196</FONT>     * &lt;P&gt;<a name="line.196"></a>
<FONT color="green">197</FONT>     * Special notes:<a name="line.197"></a>
<FONT color="green">198</FONT>     * &lt;ol&gt;<a name="line.198"></a>
<FONT color="green">199</FONT>     * &lt;li&gt;the default starting point is 12 o'clock and the pie sections proceed<a name="line.199"></a>
<FONT color="green">200</FONT>     * in a clockwise direction, but these settings can be changed;&lt;/li&gt;<a name="line.200"></a>
<FONT color="green">201</FONT>     * &lt;li&gt;negative values in the dataset are ignored;&lt;/li&gt;<a name="line.201"></a>
<FONT color="green">202</FONT>     * &lt;li&gt;there are utility methods for creating a {@link PieDataset} from a<a name="line.202"></a>
<FONT color="green">203</FONT>     * {@link org.jfree.data.category.CategoryDataset};&lt;/li&gt;<a name="line.203"></a>
<FONT color="green">204</FONT>     * &lt;/ol&gt;<a name="line.204"></a>
<FONT color="green">205</FONT>     *<a name="line.205"></a>
<FONT color="green">206</FONT>     * @see Plot<a name="line.206"></a>
<FONT color="green">207</FONT>     * @see PieDataset<a name="line.207"></a>
<FONT color="green">208</FONT>     */<a name="line.208"></a>
<FONT color="green">209</FONT>    public class PiePlot extends Plot implements Cloneable, Serializable {<a name="line.209"></a>
<FONT color="green">210</FONT>        <a name="line.210"></a>
<FONT color="green">211</FONT>        /** For serialization. */<a name="line.211"></a>
<FONT color="green">212</FONT>        private static final long serialVersionUID = -795612466005590431L;<a name="line.212"></a>
<FONT color="green">213</FONT>        <a name="line.213"></a>
<FONT color="green">214</FONT>        /** The default interior gap. */<a name="line.214"></a>
<FONT color="green">215</FONT>        public static final double DEFAULT_INTERIOR_GAP = 0.25;<a name="line.215"></a>
<FONT color="green">216</FONT>    <a name="line.216"></a>
<FONT color="green">217</FONT>        /** The maximum interior gap (currently 40%). */<a name="line.217"></a>
<FONT color="green">218</FONT>        public static final double MAX_INTERIOR_GAP = 0.40;<a name="line.218"></a>
<FONT color="green">219</FONT>    <a name="line.219"></a>
<FONT color="green">220</FONT>        /** The default starting angle for the pie chart. */<a name="line.220"></a>
<FONT color="green">221</FONT>        public static final double DEFAULT_START_ANGLE = 90.0;<a name="line.221"></a>
<FONT color="green">222</FONT>    <a name="line.222"></a>
<FONT color="green">223</FONT>        /** The default section label font. */<a name="line.223"></a>
<FONT color="green">224</FONT>        public static final Font DEFAULT_LABEL_FONT <a name="line.224"></a>
<FONT color="green">225</FONT>            = new Font("SansSerif", Font.PLAIN, 10);<a name="line.225"></a>
<FONT color="green">226</FONT>    <a name="line.226"></a>
<FONT color="green">227</FONT>        /** The default section label paint. */<a name="line.227"></a>
<FONT color="green">228</FONT>        public static final Paint DEFAULT_LABEL_PAINT = Color.black;<a name="line.228"></a>
<FONT color="green">229</FONT>        <a name="line.229"></a>
<FONT color="green">230</FONT>        /** The default section label background paint. */<a name="line.230"></a>
<FONT color="green">231</FONT>        public static final Paint DEFAULT_LABEL_BACKGROUND_PAINT <a name="line.231"></a>
<FONT color="green">232</FONT>            = new Color(255, 255, 192);<a name="line.232"></a>
<FONT color="green">233</FONT>    <a name="line.233"></a>
<FONT color="green">234</FONT>        /** The default section label outline paint. */<a name="line.234"></a>
<FONT color="green">235</FONT>        public static final Paint DEFAULT_LABEL_OUTLINE_PAINT = Color.black;<a name="line.235"></a>
<FONT color="green">236</FONT>        <a name="line.236"></a>
<FONT color="green">237</FONT>        /** The default section label outline stroke. */<a name="line.237"></a>
<FONT color="green">238</FONT>        public static final Stroke DEFAULT_LABEL_OUTLINE_STROKE <a name="line.238"></a>
<FONT color="green">239</FONT>            = new BasicStroke(0.5f);<a name="line.239"></a>
<FONT color="green">240</FONT>        <a name="line.240"></a>
<FONT color="green">241</FONT>        /** The default section label shadow paint. */<a name="line.241"></a>
<FONT color="green">242</FONT>        public static final Paint DEFAULT_LABEL_SHADOW_PAINT = Color.lightGray;<a name="line.242"></a>
<FONT color="green">243</FONT>        <a name="line.243"></a>
<FONT color="green">244</FONT>        /** The default minimum arc angle to draw. */<a name="line.244"></a>
<FONT color="green">245</FONT>        public static final double DEFAULT_MINIMUM_ARC_ANGLE_TO_DRAW = 0.00001;<a name="line.245"></a>
<FONT color="green">246</FONT>    <a name="line.246"></a>
<FONT color="green">247</FONT>        /** The dataset for the pie chart. */<a name="line.247"></a>
<FONT color="green">248</FONT>        private PieDataset dataset;<a name="line.248"></a>
<FONT color="green">249</FONT>    <a name="line.249"></a>
<FONT color="green">250</FONT>        /** The pie index (used by the {@link MultiplePiePlot} class). */<a name="line.250"></a>
<FONT color="green">251</FONT>        private int pieIndex;<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>         * The amount of space left around the outside of the pie plot, expressed <a name="line.254"></a>
<FONT color="green">255</FONT>         * as a percentage. <a name="line.255"></a>
<FONT color="green">256</FONT>         */<a name="line.256"></a>
<FONT color="green">257</FONT>        private double interiorGap;<a name="line.257"></a>
<FONT color="green">258</FONT>    <a name="line.258"></a>
<FONT color="green">259</FONT>        /** Flag determining whether to draw an ellipse or a perfect circle. */<a name="line.259"></a>
<FONT color="green">260</FONT>        private boolean circular;<a name="line.260"></a>
<FONT color="green">261</FONT>    <a name="line.261"></a>
<FONT color="green">262</FONT>        /** The starting angle. */<a name="line.262"></a>
<FONT color="green">263</FONT>        private double startAngle;<a name="line.263"></a>
<FONT color="green">264</FONT>    <a name="line.264"></a>
<FONT color="green">265</FONT>        /** The direction for the pie segments. */<a name="line.265"></a>
<FONT color="green">266</FONT>        private Rotation direction;<a name="line.266"></a>
<FONT color="green">267</FONT>    <a name="line.267"></a>
<FONT color="green">268</FONT>        /** The paint for ALL sections (overrides list). */<a name="line.268"></a>
<FONT color="green">269</FONT>        private transient Paint sectionPaint;<a name="line.269"></a>
<FONT color="green">270</FONT>    <a name="line.270"></a>
<FONT color="green">271</FONT>        /** The section paint list. */<a name="line.271"></a>
<FONT color="green">272</FONT>        private PaintList sectionPaintList;<a name="line.272"></a>
<FONT color="green">273</FONT>    <a name="line.273"></a>
<FONT color="green">274</FONT>        /** The base section paint (fallback). */<a name="line.274"></a>
<FONT color="green">275</FONT>        private transient Paint baseSectionPaint;<a name="line.275"></a>
<FONT color="green">276</FONT>    <a name="line.276"></a>
<FONT color="green">277</FONT>        /** <a name="line.277"></a>
<FONT color="green">278</FONT>         * A flag that controls whether or not an outline is drawn for each<a name="line.278"></a>
<FONT color="green">279</FONT>         * section in the plot.<a name="line.279"></a>