plot.html

jfreechart最新源代码

<FONT color="green">143</FONT>    import org.jfree.chart.LegendItemCollection;<a name="line.143"></a>
<FONT color="green">144</FONT>    import org.jfree.chart.LegendItemSource;<a name="line.144"></a>
<FONT color="green">145</FONT>    import org.jfree.chart.axis.AxisLocation;<a name="line.145"></a>
<FONT color="green">146</FONT>    import org.jfree.chart.event.AxisChangeEvent;<a name="line.146"></a>
<FONT color="green">147</FONT>    import org.jfree.chart.event.AxisChangeListener;<a name="line.147"></a>
<FONT color="green">148</FONT>    import org.jfree.chart.event.ChartChangeEventType;<a name="line.148"></a>
<FONT color="green">149</FONT>    import org.jfree.chart.event.PlotChangeEvent;<a name="line.149"></a>
<FONT color="green">150</FONT>    import org.jfree.chart.event.PlotChangeListener;<a name="line.150"></a>
<FONT color="green">151</FONT>    import org.jfree.data.general.DatasetChangeEvent;<a name="line.151"></a>
<FONT color="green">152</FONT>    import org.jfree.data.general.DatasetChangeListener;<a name="line.152"></a>
<FONT color="green">153</FONT>    import org.jfree.data.general.DatasetGroup;<a name="line.153"></a>
<FONT color="green">154</FONT>    import org.jfree.io.SerialUtilities;<a name="line.154"></a>
<FONT color="green">155</FONT>    import org.jfree.text.G2TextMeasurer;<a name="line.155"></a>
<FONT color="green">156</FONT>    import org.jfree.text.TextBlock;<a name="line.156"></a>
<FONT color="green">157</FONT>    import org.jfree.text.TextBlockAnchor;<a name="line.157"></a>
<FONT color="green">158</FONT>    import org.jfree.text.TextUtilities;<a name="line.158"></a>
<FONT color="green">159</FONT>    import org.jfree.ui.Align;<a name="line.159"></a>
<FONT color="green">160</FONT>    import org.jfree.ui.RectangleEdge;<a name="line.160"></a>
<FONT color="green">161</FONT>    import org.jfree.ui.RectangleInsets;<a name="line.161"></a>
<FONT color="green">162</FONT>    import org.jfree.util.ObjectUtilities;<a name="line.162"></a>
<FONT color="green">163</FONT>    import org.jfree.util.PaintUtilities;<a name="line.163"></a>
<FONT color="green">164</FONT>    import org.jfree.util.PublicCloneable;<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>     * The base class for all plots in JFreeChart.  The <a name="line.167"></a>
<FONT color="green">168</FONT>     * {@link org.jfree.chart.JFreeChart} class delegates the drawing of axes and <a name="line.168"></a>
<FONT color="green">169</FONT>     * data to the plot.  This base class provides facilities common to most plot <a name="line.169"></a>
<FONT color="green">170</FONT>     * types.<a name="line.170"></a>
<FONT color="green">171</FONT>     */<a name="line.171"></a>
<FONT color="green">172</FONT>    public abstract class Plot implements AxisChangeListener,<a name="line.172"></a>
<FONT color="green">173</FONT>                                          DatasetChangeListener,<a name="line.173"></a>
<FONT color="green">174</FONT>                                          LegendItemSource,<a name="line.174"></a>
<FONT color="green">175</FONT>                                          PublicCloneable,<a name="line.175"></a>
<FONT color="green">176</FONT>                                          Cloneable,<a name="line.176"></a>
<FONT color="green">177</FONT>                                          Serializable {<a name="line.177"></a>
<FONT color="green">178</FONT>    <a name="line.178"></a>
<FONT color="green">179</FONT>        /** For serialization. */<a name="line.179"></a>
<FONT color="green">180</FONT>        private static final long serialVersionUID = -8831571430103671324L;<a name="line.180"></a>
<FONT color="green">181</FONT>        <a name="line.181"></a>
<FONT color="green">182</FONT>        /** Useful constant representing zero. */<a name="line.182"></a>
<FONT color="green">183</FONT>        public static final Number ZERO = new Integer(0);<a name="line.183"></a>
<FONT color="green">184</FONT>    <a name="line.184"></a>
<FONT color="green">185</FONT>        /** The default insets. */<a name="line.185"></a>
<FONT color="green">186</FONT>        public static final RectangleInsets DEFAULT_INSETS <a name="line.186"></a>
<FONT color="green">187</FONT>            = new RectangleInsets(4.0, 8.0, 4.0, 8.0);<a name="line.187"></a>
<FONT color="green">188</FONT>    <a name="line.188"></a>
<FONT color="green">189</FONT>        /** The default outline stroke. */<a name="line.189"></a>
<FONT color="green">190</FONT>        public static final Stroke DEFAULT_OUTLINE_STROKE = new BasicStroke(0.5f);<a name="line.190"></a>
<FONT color="green">191</FONT>    <a name="line.191"></a>
<FONT color="green">192</FONT>        /** The default outline color. */<a name="line.192"></a>
<FONT color="green">193</FONT>        public static final Paint DEFAULT_OUTLINE_PAINT = Color.gray;<a name="line.193"></a>
<FONT color="green">194</FONT>    <a name="line.194"></a>
<FONT color="green">195</FONT>        /** The default foreground alpha transparency. */<a name="line.195"></a>
<FONT color="green">196</FONT>        public static final float DEFAULT_FOREGROUND_ALPHA = 1.0f;<a name="line.196"></a>
<FONT color="green">197</FONT>    <a name="line.197"></a>
<FONT color="green">198</FONT>        /** The default background alpha transparency. */<a name="line.198"></a>
<FONT color="green">199</FONT>        public static final float DEFAULT_BACKGROUND_ALPHA = 1.0f;<a name="line.199"></a>
<FONT color="green">200</FONT>    <a name="line.200"></a>
<FONT color="green">201</FONT>        /** The default background color. */<a name="line.201"></a>
<FONT color="green">202</FONT>        public static final Paint DEFAULT_BACKGROUND_PAINT = Color.white;<a name="line.202"></a>
<FONT color="green">203</FONT>    <a name="line.203"></a>
<FONT color="green">204</FONT>        /** The minimum width at which the plot should be drawn. */<a name="line.204"></a>
<FONT color="green">205</FONT>        public static final int MINIMUM_WIDTH_TO_DRAW = 10;<a name="line.205"></a>
<FONT color="green">206</FONT>    <a name="line.206"></a>
<FONT color="green">207</FONT>        /** The minimum height at which the plot should be drawn. */<a name="line.207"></a>
<FONT color="green">208</FONT>        public static final int MINIMUM_HEIGHT_TO_DRAW = 10;<a name="line.208"></a>
<FONT color="green">209</FONT>        <a name="line.209"></a>
<FONT color="green">210</FONT>        /** A default box shape for legend items. */<a name="line.210"></a>
<FONT color="green">211</FONT>        public static final Shape DEFAULT_LEGEND_ITEM_BOX <a name="line.211"></a>
<FONT color="green">212</FONT>            = new Rectangle2D.Double(-4.0, -4.0, 8.0, 8.0);<a name="line.212"></a>
<FONT color="green">213</FONT>        <a name="line.213"></a>
<FONT color="green">214</FONT>        /** A default circle shape for legend items. */<a name="line.214"></a>
<FONT color="green">215</FONT>        public static final Shape DEFAULT_LEGEND_ITEM_CIRCLE <a name="line.215"></a>
<FONT color="green">216</FONT>            = new Ellipse2D.Double(-4.0, -4.0, 8.0, 8.0);<a name="line.216"></a>
<FONT color="green">217</FONT>    <a name="line.217"></a>
<FONT color="green">218</FONT>        /** The parent plot (&lt;code&gt;null&lt;/code&gt; if this is the root plot). */<a name="line.218"></a>
<FONT color="green">219</FONT>        private Plot parent;<a name="line.219"></a>
<FONT color="green">220</FONT>    <a name="line.220"></a>
<FONT color="green">221</FONT>        /** The dataset group (to be used for thread synchronisation). */<a name="line.221"></a>
<FONT color="green">222</FONT>        private DatasetGroup datasetGroup;<a name="line.222"></a>
<FONT color="green">223</FONT>    <a name="line.223"></a>
<FONT color="green">224</FONT>        /** The message to display if no data is available. */<a name="line.224"></a>
<FONT color="green">225</FONT>        private String noDataMessage;<a name="line.225"></a>
<FONT color="green">226</FONT>    <a name="line.226"></a>
<FONT color="green">227</FONT>        /** The font used to display the 'no data' message. */<a name="line.227"></a>
<FONT color="green">228</FONT>        private Font noDataMessageFont;<a name="line.228"></a>
<FONT color="green">229</FONT>    <a name="line.229"></a>
<FONT color="green">230</FONT>        /** The paint used to draw the 'no data' message. */<a name="line.230"></a>
<FONT color="green">231</FONT>        private transient Paint noDataMessagePaint;<a name="line.231"></a>
<FONT color="green">232</FONT>    <a name="line.232"></a>
<FONT color="green">233</FONT>        /** Amount of blank space around the plot area. */<a name="line.233"></a>
<FONT color="green">234</FONT>        private RectangleInsets insets;<a name="line.234"></a>
<FONT color="green">235</FONT>    <a name="line.235"></a>
<FONT color="green">236</FONT>        /** The Stroke used to draw an outline around the plot. */<a name="line.236"></a>
<FONT color="green">237</FONT>        private transient Stroke outlineStroke;<a name="line.237"></a>
<FONT color="green">238</FONT>    <a name="line.238"></a>
<FONT color="green">239</FONT>        /** The Paint used to draw an outline around the plot. */<a name="line.239"></a>
<FONT color="green">240</FONT>        private transient Paint outlinePaint;<a name="line.240"></a>
<FONT color="green">241</FONT>    <a name="line.241"></a>
<FONT color="green">242</FONT>        /** An optional color used to fill the plot background. */<a name="line.242"></a>
<FONT color="green">243</FONT>        private transient Paint backgroundPaint;<a name="line.243"></a>
<FONT color="green">244</FONT>    <a name="line.244"></a>
<FONT color="green">245</FONT>        /** An optional image for the plot background. */<a name="line.245"></a>
<FONT color="green">246</FONT>        private transient Image backgroundImage;  // not currently serialized<a name="line.246"></a>
<FONT color="green">247</FONT>    <a name="line.247"></a>
<FONT color="green">248</FONT>        /** The alignment for the background image. */<a name="line.248"></a>
<FONT color="green">249</FONT>        private int backgroundImageAlignment = Align.FIT;<a name="line.249"></a>
<FONT color="green">250</FONT>    <a name="line.250"></a>
<FONT color="green">251</FONT>        /** The alpha value used to draw the background image. */<a name="line.251"></a>
<FONT color="green">252</FONT>        private float backgroundImageAlpha = 0.5f;<a name="line.252"></a>
<FONT color="green">253</FONT>        <a name="line.253"></a>
<FONT color="green">254</FONT>        /** The alpha-transparency for the plot. */<a name="line.254"></a>
<FONT color="green">255</FONT>        private float foregroundAlpha;<a name="line.255"></a>
<FONT color="green">256</FONT>    <a name="line.256"></a>
<FONT color="green">257</FONT>        /** The alpha transparency for the background paint. */<a name="line.257"></a>
<FONT color="green">258</FONT>        private float backgroundAlpha;<a name="line.258"></a>
<FONT color="green">259</FONT>    <a name="line.259"></a>
<FONT color="green">260</FONT>        /** The drawing supplier. */<a name="line.260"></a>
<FONT color="green">261</FONT>        private DrawingSupplier drawingSupplier;<a name="line.261"></a>
<FONT color="green">262</FONT>    <a name="line.262"></a>
<FONT color="green">263</FONT>        /** Storage for registered change listeners. */<a name="line.263"></a>
<FONT color="green">264</FONT>        private transient EventListenerList listenerList;<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>         * Creates a new plot.<a name="line.267"></a>
<FONT color="green">268</FONT>         */<a name="line.268"></a>
<FONT color="green">269</FONT>        protected Plot() {<a name="line.269"></a>
<FONT color="green">270</FONT>    <a name="line.270"></a>
<FONT color="green">271</FONT>            this.parent = null;<a name="line.271"></a>
<FONT color="green">272</FONT>            this.insets = DEFAULT_INSETS;<a name="line.272"></a>
<FONT color="green">273</FONT>            this.backgroundPaint = DEFAULT_BACKGROUND_PAINT;<a name="line.273"></a>
<FONT color="green">274</FONT>            this.backgroundAlpha = DEFAULT_BACKGROUND_ALPHA;<a name="line.274"></a>
<FONT color="green">275</FONT>            this.backgroundImage = null;<a name="line.275"></a>
<FONT color="green">276</FONT>            this.outlineStroke = DEFAULT_OUTLINE_STROKE;<a name="line.276"></a>
<FONT color="green">277</FONT>            this.outlinePaint = DEFAULT_OUTLINE_PAINT;<a name="line.277"></a>
<FONT color="green">278</FONT>            this.foregroundAlpha = DEFAULT_FOREGROUND_ALPHA;<a name="line.278"></a>
<FONT color="green">279</FONT>    <a name="line.279"></a>
<FONT color="green">280</FONT>            this.noDataMessage = null;<a name="line.280"></a>
<FONT color="green">281</FONT>            this.noDataMessageFont = new Font("SansSerif", Font.PLAIN, 12);<a name="line.281"></a>
<FONT color="green">282</FONT>            this.noDataMessagePaint = Color.black;<a name="line.282"></a>
<FONT color="green">283</FONT>    <a name="line.283"></a>
<FONT color="green">284</FONT>            this.drawingSupplier = new DefaultDrawingSupplier();<a name="line.284"></a>
<FONT color="green">285</FONT>    <a name="line.285"></a>
<FONT color="green">286</FONT>            this.listenerList = new EventListenerList();<a name="line.286"></a>
<FONT color="green">287</FONT>    <a name="line.287"></a>