imagetitle.html

jfreechart1。0。2的api。

<FONT color="green">190</FONT>    <a name="line.190"></a>
<FONT color="green">191</FONT>        /**<a name="line.191"></a>
<FONT color="green">192</FONT>         * Draws the title on a Java 2D graphics device (such as the screen or a <a name="line.192"></a>
<FONT color="green">193</FONT>         * printer).<a name="line.193"></a>
<FONT color="green">194</FONT>         *<a name="line.194"></a>
<FONT color="green">195</FONT>         * @param g2  the graphics device.<a name="line.195"></a>
<FONT color="green">196</FONT>         * @param chartArea  the area within which the title (and plot) should be <a name="line.196"></a>
<FONT color="green">197</FONT>         *                   drawn.<a name="line.197"></a>
<FONT color="green">198</FONT>         *<a name="line.198"></a>
<FONT color="green">199</FONT>         * @return The size of the area used by the title.<a name="line.199"></a>
<FONT color="green">200</FONT>         */<a name="line.200"></a>
<FONT color="green">201</FONT>        protected Size2D drawHorizontal(Graphics2D g2, Rectangle2D chartArea) {<a name="line.201"></a>
<FONT color="green">202</FONT>    <a name="line.202"></a>
<FONT color="green">203</FONT>            double startY = 0.0;<a name="line.203"></a>
<FONT color="green">204</FONT>            double topSpace = 0.0;<a name="line.204"></a>
<FONT color="green">205</FONT>            double bottomSpace = 0.0;<a name="line.205"></a>
<FONT color="green">206</FONT>            double leftSpace = 0.0;<a name="line.206"></a>
<FONT color="green">207</FONT>            double rightSpace = 0.0;<a name="line.207"></a>
<FONT color="green">208</FONT>    <a name="line.208"></a>
<FONT color="green">209</FONT>            double w = getWidth();<a name="line.209"></a>
<FONT color="green">210</FONT>            double h = getHeight();<a name="line.210"></a>
<FONT color="green">211</FONT>            RectangleInsets padding = getPadding();<a name="line.211"></a>
<FONT color="green">212</FONT>            topSpace = padding.calculateTopOutset(h);<a name="line.212"></a>
<FONT color="green">213</FONT>            bottomSpace = padding.calculateBottomOutset(h);<a name="line.213"></a>
<FONT color="green">214</FONT>            leftSpace = padding.calculateLeftOutset(w);<a name="line.214"></a>
<FONT color="green">215</FONT>            rightSpace = padding.calculateRightOutset(w);<a name="line.215"></a>
<FONT color="green">216</FONT>    <a name="line.216"></a>
<FONT color="green">217</FONT>            if (getPosition() == RectangleEdge.TOP) {<a name="line.217"></a>
<FONT color="green">218</FONT>                startY = chartArea.getY() + topSpace;<a name="line.218"></a>
<FONT color="green">219</FONT>            }<a name="line.219"></a>
<FONT color="green">220</FONT>            else {<a name="line.220"></a>
<FONT color="green">221</FONT>                startY = chartArea.getY() + chartArea.getHeight() - bottomSpace - h;<a name="line.221"></a>
<FONT color="green">222</FONT>            }<a name="line.222"></a>
<FONT color="green">223</FONT>    <a name="line.223"></a>
<FONT color="green">224</FONT>            // what is our alignment?<a name="line.224"></a>
<FONT color="green">225</FONT>            HorizontalAlignment horizontalAlignment = getHorizontalAlignment();<a name="line.225"></a>
<FONT color="green">226</FONT>            double startX = 0.0;<a name="line.226"></a>
<FONT color="green">227</FONT>            if (horizontalAlignment == HorizontalAlignment.CENTER) {<a name="line.227"></a>
<FONT color="green">228</FONT>                startX = chartArea.getX() + leftSpace + chartArea.getWidth() / 2.0 <a name="line.228"></a>
<FONT color="green">229</FONT>                         - w / 2.0;<a name="line.229"></a>
<FONT color="green">230</FONT>            }<a name="line.230"></a>
<FONT color="green">231</FONT>            else if (horizontalAlignment == HorizontalAlignment.LEFT) {<a name="line.231"></a>
<FONT color="green">232</FONT>                startX = chartArea.getX() + leftSpace;<a name="line.232"></a>
<FONT color="green">233</FONT>            }<a name="line.233"></a>
<FONT color="green">234</FONT>            else if (horizontalAlignment == HorizontalAlignment.RIGHT) {<a name="line.234"></a>
<FONT color="green">235</FONT>                startX = chartArea.getX() + chartArea.getWidth() - rightSpace - w;<a name="line.235"></a>
<FONT color="green">236</FONT>            }<a name="line.236"></a>
<FONT color="green">237</FONT>            g2.drawImage(this.image, (int) startX, (int) startY, (int) w, (int) h, <a name="line.237"></a>
<FONT color="green">238</FONT>                    null);<a name="line.238"></a>
<FONT color="green">239</FONT>    <a name="line.239"></a>
<FONT color="green">240</FONT>            return new Size2D(chartArea.getWidth() + leftSpace + rightSpace,<a name="line.240"></a>
<FONT color="green">241</FONT>                h + topSpace + bottomSpace);<a name="line.241"></a>
<FONT color="green">242</FONT>    <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>         * Draws the title on a Java 2D graphics device (such as the screen or a <a name="line.246"></a>
<FONT color="green">247</FONT>         * printer).<a name="line.247"></a>
<FONT color="green">248</FONT>         *<a name="line.248"></a>
<FONT color="green">249</FONT>         * @param g2  the graphics device.<a name="line.249"></a>
<FONT color="green">250</FONT>         * @param chartArea  the area within which the title (and plot) should be <a name="line.250"></a>
<FONT color="green">251</FONT>         *                   drawn.<a name="line.251"></a>
<FONT color="green">252</FONT>         *<a name="line.252"></a>
<FONT color="green">253</FONT>         * @return The size of the area used by the title.<a name="line.253"></a>
<FONT color="green">254</FONT>         */<a name="line.254"></a>
<FONT color="green">255</FONT>        protected Size2D drawVertical(Graphics2D g2, Rectangle2D chartArea) {<a name="line.255"></a>
<FONT color="green">256</FONT>    <a name="line.256"></a>
<FONT color="green">257</FONT>            double startX = 0.0;<a name="line.257"></a>
<FONT color="green">258</FONT>            double topSpace = 0.0;<a name="line.258"></a>
<FONT color="green">259</FONT>            double bottomSpace = 0.0;<a name="line.259"></a>
<FONT color="green">260</FONT>            double leftSpace = 0.0;<a name="line.260"></a>
<FONT color="green">261</FONT>            double rightSpace = 0.0;<a name="line.261"></a>
<FONT color="green">262</FONT>    <a name="line.262"></a>
<FONT color="green">263</FONT>            double w = getWidth();<a name="line.263"></a>
<FONT color="green">264</FONT>            double h = getHeight();<a name="line.264"></a>
<FONT color="green">265</FONT>            <a name="line.265"></a>
<FONT color="green">266</FONT>            RectangleInsets padding = getPadding();<a name="line.266"></a>
<FONT color="green">267</FONT>            if (padding != null) {<a name="line.267"></a>
<FONT color="green">268</FONT>                topSpace = padding.calculateTopOutset(h);<a name="line.268"></a>
<FONT color="green">269</FONT>                bottomSpace = padding.calculateBottomOutset(h);<a name="line.269"></a>
<FONT color="green">270</FONT>                leftSpace = padding.calculateLeftOutset(w);<a name="line.270"></a>
<FONT color="green">271</FONT>                rightSpace = padding.calculateRightOutset(w);<a name="line.271"></a>
<FONT color="green">272</FONT>            }<a name="line.272"></a>
<FONT color="green">273</FONT>    <a name="line.273"></a>
<FONT color="green">274</FONT>            if (getPosition() == RectangleEdge.LEFT) {<a name="line.274"></a>
<FONT color="green">275</FONT>                startX = chartArea.getX() + leftSpace;<a name="line.275"></a>
<FONT color="green">276</FONT>            }<a name="line.276"></a>
<FONT color="green">277</FONT>            else {<a name="line.277"></a>
<FONT color="green">278</FONT>                startX = chartArea.getMaxX() - rightSpace - w;<a name="line.278"></a>
<FONT color="green">279</FONT>            }<a name="line.279"></a>
<FONT color="green">280</FONT>    <a name="line.280"></a>
<FONT color="green">281</FONT>            // what is our alignment?<a name="line.281"></a>
<FONT color="green">282</FONT>            VerticalAlignment alignment = getVerticalAlignment();<a name="line.282"></a>
<FONT color="green">283</FONT>            double startY = 0.0;<a name="line.283"></a>
<FONT color="green">284</FONT>            if (alignment == VerticalAlignment.CENTER) {<a name="line.284"></a>
<FONT color="green">285</FONT>                startY = chartArea.getMinY() + topSpace <a name="line.285"></a>
<FONT color="green">286</FONT>                         + chartArea.getHeight() / 2.0 - h / 2.0;<a name="line.286"></a>
<FONT color="green">287</FONT>            }<a name="line.287"></a>
<FONT color="green">288</FONT>            else if (alignment == VerticalAlignment.TOP) {<a name="line.288"></a>
<FONT color="green">289</FONT>                startY = chartArea.getMinY() + topSpace;<a name="line.289"></a>
<FONT color="green">290</FONT>            }<a name="line.290"></a>
<FONT color="green">291</FONT>            else if (alignment == VerticalAlignment.BOTTOM) {<a name="line.291"></a>
<FONT color="green">292</FONT>                startY = chartArea.getMaxY() - bottomSpace - h;<a name="line.292"></a>
<FONT color="green">293</FONT>            }<a name="line.293"></a>
<FONT color="green">294</FONT>    <a name="line.294"></a>
<FONT color="green">295</FONT>            g2.drawImage(this.image, (int) startX, (int) startY, (int) w, (int) h, <a name="line.295"></a>
<FONT color="green">296</FONT>                    null);<a name="line.296"></a>
<FONT color="green">297</FONT>    <a name="line.297"></a>
<FONT color="green">298</FONT>            return new Size2D(chartArea.getWidth() + leftSpace + rightSpace,<a name="line.298"></a>
<FONT color="green">299</FONT>                h + topSpace + bottomSpace);<a name="line.299"></a>
<FONT color="green">300</FONT>    <a name="line.300"></a>
<FONT color="green">301</FONT>        }<a name="line.301"></a>
<FONT color="green">302</FONT>        <a name="line.302"></a>
<FONT color="green">303</FONT>        /**<a name="line.303"></a>
<FONT color="green">304</FONT>         * Draws the block within the specified area.<a name="line.304"></a>
<FONT color="green">305</FONT>         * <a name="line.305"></a>
<FONT color="green">306</FONT>         * @param g2  the graphics device.<a name="line.306"></a>
<FONT color="green">307</FONT>         * @param area  the area.<a name="line.307"></a>
<FONT color="green">308</FONT>         * @param params  ignored (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.308"></a>
<FONT color="green">309</FONT>         * <a name="line.309"></a>
<FONT color="green">310</FONT>         * @return Always &lt;code&gt;null&lt;/code&gt;.<a name="line.310"></a>
<FONT color="green">311</FONT>         */<a name="line.311"></a>
<FONT color="green">312</FONT>        public Object draw(Graphics2D g2, Rectangle2D area, Object params) {<a name="line.312"></a>
<FONT color="green">313</FONT>            draw(g2, area);<a name="line.313"></a>
<FONT color="green">314</FONT>            return null;<a name="line.314"></a>
<FONT color="green">315</FONT>        }<a name="line.315"></a>
<FONT color="green">316</FONT>    <a name="line.316"></a>
<FONT color="green">317</FONT>    }<a name="line.317"></a>




























































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