EncoderUtil.html 23 KB

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  95. <div class="subTitle">org.jfree.chart.encoders</div>
  96. <h2 title="Class EncoderUtil" class="title">Class EncoderUtil</h2>
  97. </div>
  98. <div class="contentContainer">
  99. <ul class="inheritance">
  100. <li>java.lang.Object</li>
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  102. <ul class="inheritance">
  103. <li>org.jfree.chart.encoders.EncoderUtil</li>
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  107. <div class="description">
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  112. <pre>public class <a href="../../../../src-html/org/jfree/chart/encoders/EncoderUtil.html#line.52">EncoderUtil</a>
  113. extends java.lang.Object</pre>
  114. <div class="block">A collection of utility methods for encoding images and returning them as a
  115. byte[] or writing them directly to an OutputStream.</div>
  116. </li>
  117. </ul>
  118. </div>
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  130. <tr>
  131. <th class="colOne" scope="col">Constructor and Description</th>
  132. </tr>
  133. <tr class="altColor">
  134. <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/jfree/chart/encoders/EncoderUtil.html#EncoderUtil--">EncoderUtil</a></span>()</code>&nbsp;</td>
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  144. <h3>Method Summary</h3>
  145. <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
  146. <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
  147. <tr>
  148. <th class="colFirst" scope="col">Modifier and Type</th>
  149. <th class="colLast" scope="col">Method and Description</th>
  150. </tr>
  151. <tr id="i0" class="altColor">
  152. <td class="colFirst"><code>static byte[]</code></td>
  153. <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/chart/encoders/EncoderUtil.html#encode-java.awt.image.BufferedImage-java.lang.String-">encode</a></span>(java.awt.image.BufferedImage&nbsp;image,
  154. java.lang.String&nbsp;format)</code>
  155. <div class="block">Encode the image in a specific format.</div>
  156. </td>
  157. </tr>
  158. <tr id="i1" class="rowColor">
  159. <td class="colFirst"><code>static byte[]</code></td>
  160. <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/chart/encoders/EncoderUtil.html#encode-java.awt.image.BufferedImage-java.lang.String-boolean-">encode</a></span>(java.awt.image.BufferedImage&nbsp;image,
  161. java.lang.String&nbsp;format,
  162. boolean&nbsp;encodeAlpha)</code>
  163. <div class="block">Encode the image in a specific format.</div>
  164. </td>
  165. </tr>
  166. <tr id="i2" class="altColor">
  167. <td class="colFirst"><code>static byte[]</code></td>
  168. <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/chart/encoders/EncoderUtil.html#encode-java.awt.image.BufferedImage-java.lang.String-float-">encode</a></span>(java.awt.image.BufferedImage&nbsp;image,
  169. java.lang.String&nbsp;format,
  170. float&nbsp;quality)</code>
  171. <div class="block">Encode the image in a specific format.</div>
  172. </td>
  173. </tr>
  174. <tr id="i3" class="rowColor">
  175. <td class="colFirst"><code>static byte[]</code></td>
  176. <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/chart/encoders/EncoderUtil.html#encode-java.awt.image.BufferedImage-java.lang.String-float-boolean-">encode</a></span>(java.awt.image.BufferedImage&nbsp;image,
  177. java.lang.String&nbsp;format,
  178. float&nbsp;quality,
  179. boolean&nbsp;encodeAlpha)</code>
  180. <div class="block">Encode the image in a specific format.</div>
  181. </td>
  182. </tr>
  183. <tr id="i4" class="altColor">
  184. <td class="colFirst"><code>static void</code></td>
  185. <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/chart/encoders/EncoderUtil.html#writeBufferedImage-java.awt.image.BufferedImage-java.lang.String-java.io.OutputStream-">writeBufferedImage</a></span>(java.awt.image.BufferedImage&nbsp;image,
  186. java.lang.String&nbsp;format,
  187. java.io.OutputStream&nbsp;outputStream)</code>
  188. <div class="block">Encode the image in a specific format and write it to an OutputStream.</div>
  189. </td>
  190. </tr>
  191. <tr id="i5" class="rowColor">
  192. <td class="colFirst"><code>static void</code></td>
  193. <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/chart/encoders/EncoderUtil.html#writeBufferedImage-java.awt.image.BufferedImage-java.lang.String-java.io.OutputStream-boolean-">writeBufferedImage</a></span>(java.awt.image.BufferedImage&nbsp;image,
  194. java.lang.String&nbsp;format,
  195. java.io.OutputStream&nbsp;outputStream,
  196. boolean&nbsp;encodeAlpha)</code>
  197. <div class="block">Encode the image in a specific format and write it to an OutputStream.</div>
  198. </td>
  199. </tr>
  200. <tr id="i6" class="altColor">
  201. <td class="colFirst"><code>static void</code></td>
  202. <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/chart/encoders/EncoderUtil.html#writeBufferedImage-java.awt.image.BufferedImage-java.lang.String-java.io.OutputStream-float-">writeBufferedImage</a></span>(java.awt.image.BufferedImage&nbsp;image,
  203. java.lang.String&nbsp;format,
  204. java.io.OutputStream&nbsp;outputStream,
  205. float&nbsp;quality)</code>
  206. <div class="block">Encode the image in a specific format and write it to an OutputStream.</div>
  207. </td>
  208. </tr>
  209. <tr id="i7" class="rowColor">
  210. <td class="colFirst"><code>static void</code></td>
  211. <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/chart/encoders/EncoderUtil.html#writeBufferedImage-java.awt.image.BufferedImage-java.lang.String-java.io.OutputStream-float-boolean-">writeBufferedImage</a></span>(java.awt.image.BufferedImage&nbsp;image,
  212. java.lang.String&nbsp;format,
  213. java.io.OutputStream&nbsp;outputStream,
  214. float&nbsp;quality,
  215. boolean&nbsp;encodeAlpha)</code>
  216. <div class="block">Encode the image in a specific format and write it to an OutputStream.</div>
  217. </td>
  218. </tr>
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  220. <ul class="blockList">
  221. <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
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  224. <h3>Methods inherited from class&nbsp;java.lang.Object</h3>
  225. <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
  226. </ul>
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  240. <h3>Constructor Detail</h3>
  241. <a name="EncoderUtil--">
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  244. <ul class="blockListLast">
  245. <li class="blockList">
  246. <h4>EncoderUtil</h4>
  247. <pre>public&nbsp;<a href="../../../../src-html/org/jfree/chart/encoders/EncoderUtil.html#line.52">EncoderUtil</a>()</pre>
  248. </li>
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  258. <a name="encode-java.awt.image.BufferedImage-java.lang.String-">
  259. <!-- -->
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  261. <ul class="blockList">
  262. <li class="blockList">
  263. <h4>encode</h4>
  264. <pre>public static&nbsp;byte[]&nbsp;<a href="../../../../src-html/org/jfree/chart/encoders/EncoderUtil.html#line.63">encode</a>(java.awt.image.BufferedImage&nbsp;image,
  265. java.lang.String&nbsp;format)
  266. throws java.io.IOException</pre>
  267. <div class="block">Encode the image in a specific format.</div>
  268. <dl>
  269. <dt><span class="paramLabel">Parameters:</span></dt>
  270. <dd><code>image</code> - The image to be encoded.</dd>
  271. <dd><code>format</code> - The <a href="../../../../org/jfree/chart/encoders/ImageFormat.html" title="interface in org.jfree.chart.encoders"><code>ImageFormat</code></a> to use.</dd>
  272. <dt><span class="returnLabel">Returns:</span></dt>
  273. <dd>The byte[] that is the encoded image.</dd>
  274. <dt><span class="throwsLabel">Throws:</span></dt>
  275. <dd><code>java.io.IOException</code> - if there is an IO problem.</dd>
  276. </dl>
  277. </li>
  278. </ul>
  279. <a name="encode-java.awt.image.BufferedImage-java.lang.String-boolean-">
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  282. <ul class="blockList">
  283. <li class="blockList">
  284. <h4>encode</h4>
  285. <pre>public static&nbsp;byte[]&nbsp;<a href="../../../../src-html/org/jfree/chart/encoders/EncoderUtil.html#line.79">encode</a>(java.awt.image.BufferedImage&nbsp;image,
  286. java.lang.String&nbsp;format,
  287. boolean&nbsp;encodeAlpha)
  288. throws java.io.IOException</pre>
  289. <div class="block">Encode the image in a specific format.</div>
  290. <dl>
  291. <dt><span class="paramLabel">Parameters:</span></dt>
  292. <dd><code>image</code> - The image to be encoded.</dd>
  293. <dd><code>format</code> - The <a href="../../../../org/jfree/chart/encoders/ImageFormat.html" title="interface in org.jfree.chart.encoders"><code>ImageFormat</code></a> to use.</dd>
  294. <dd><code>encodeAlpha</code> - Whether to encode alpha transparency (not supported
  295. by all ImageEncoders).</dd>
  296. <dt><span class="returnLabel">Returns:</span></dt>
  297. <dd>The byte[] that is the encoded image.</dd>
  298. <dt><span class="throwsLabel">Throws:</span></dt>
  299. <dd><code>java.io.IOException</code> - if there is an IO problem.</dd>
  300. </dl>
  301. </li>
  302. </ul>
  303. <a name="encode-java.awt.image.BufferedImage-java.lang.String-float-">
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  307. <li class="blockList">
  308. <h4>encode</h4>
  309. <pre>public static&nbsp;byte[]&nbsp;<a href="../../../../src-html/org/jfree/chart/encoders/EncoderUtil.html#line.96">encode</a>(java.awt.image.BufferedImage&nbsp;image,
  310. java.lang.String&nbsp;format,
  311. float&nbsp;quality)
  312. throws java.io.IOException</pre>
  313. <div class="block">Encode the image in a specific format.</div>
  314. <dl>
  315. <dt><span class="paramLabel">Parameters:</span></dt>
  316. <dd><code>image</code> - The image to be encoded.</dd>
  317. <dd><code>format</code> - The <a href="../../../../org/jfree/chart/encoders/ImageFormat.html" title="interface in org.jfree.chart.encoders"><code>ImageFormat</code></a> to use.</dd>
  318. <dd><code>quality</code> - The quality to use for the image encoding (not supported
  319. by all ImageEncoders).</dd>
  320. <dt><span class="returnLabel">Returns:</span></dt>
  321. <dd>The byte[] that is the encoded image.</dd>
  322. <dt><span class="throwsLabel">Throws:</span></dt>
  323. <dd><code>java.io.IOException</code> - if there is an IO problem.</dd>
  324. </dl>
  325. </li>
  326. </ul>
  327. <a name="encode-java.awt.image.BufferedImage-java.lang.String-float-boolean-">
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  330. <ul class="blockList">
  331. <li class="blockList">
  332. <h4>encode</h4>
  333. <pre>public static&nbsp;byte[]&nbsp;<a href="../../../../src-html/org/jfree/chart/encoders/EncoderUtil.html#line.115">encode</a>(java.awt.image.BufferedImage&nbsp;image,
  334. java.lang.String&nbsp;format,
  335. float&nbsp;quality,
  336. boolean&nbsp;encodeAlpha)
  337. throws java.io.IOException</pre>
  338. <div class="block">Encode the image in a specific format.</div>
  339. <dl>
  340. <dt><span class="paramLabel">Parameters:</span></dt>
  341. <dd><code>image</code> - The image to be encoded.</dd>
  342. <dd><code>format</code> - The <a href="../../../../org/jfree/chart/encoders/ImageFormat.html" title="interface in org.jfree.chart.encoders"><code>ImageFormat</code></a> to use.</dd>
  343. <dd><code>quality</code> - The quality to use for the image encoding (not supported
  344. by all ImageEncoders).</dd>
  345. <dd><code>encodeAlpha</code> - Whether to encode alpha transparency (not supported
  346. by all ImageEncoders).</dd>
  347. <dt><span class="returnLabel">Returns:</span></dt>
  348. <dd>The byte[] that is the encoded image.</dd>
  349. <dt><span class="throwsLabel">Throws:</span></dt>
  350. <dd><code>java.io.IOException</code> - if there is an IO problem.</dd>
  351. </dl>
  352. </li>
  353. </ul>
  354. <a name="writeBufferedImage-java.awt.image.BufferedImage-java.lang.String-java.io.OutputStream-">
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  358. <li class="blockList">
  359. <h4>writeBufferedImage</h4>
  360. <pre>public static&nbsp;void&nbsp;<a href="../../../../src-html/org/jfree/chart/encoders/EncoderUtil.html#line.130">writeBufferedImage</a>(java.awt.image.BufferedImage&nbsp;image,
  361. java.lang.String&nbsp;format,
  362. java.io.OutputStream&nbsp;outputStream)
  363. throws java.io.IOException</pre>
  364. <div class="block">Encode the image in a specific format and write it to an OutputStream.</div>
  365. <dl>
  366. <dt><span class="paramLabel">Parameters:</span></dt>
  367. <dd><code>image</code> - The image to be encoded.</dd>
  368. <dd><code>format</code> - The <a href="../../../../org/jfree/chart/encoders/ImageFormat.html" title="interface in org.jfree.chart.encoders"><code>ImageFormat</code></a> to use.</dd>
  369. <dd><code>outputStream</code> - The OutputStream to write the encoded image to.</dd>
  370. <dt><span class="throwsLabel">Throws:</span></dt>
  371. <dd><code>java.io.IOException</code> - if there is an IO problem.</dd>
  372. </dl>
  373. </li>
  374. </ul>
  375. <a name="writeBufferedImage-java.awt.image.BufferedImage-java.lang.String-java.io.OutputStream-float-">
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  379. <li class="blockList">
  380. <h4>writeBufferedImage</h4>
  381. <pre>public static&nbsp;void&nbsp;<a href="../../../../src-html/org/jfree/chart/encoders/EncoderUtil.html#line.146">writeBufferedImage</a>(java.awt.image.BufferedImage&nbsp;image,
  382. java.lang.String&nbsp;format,
  383. java.io.OutputStream&nbsp;outputStream,
  384. float&nbsp;quality)
  385. throws java.io.IOException</pre>
  386. <div class="block">Encode the image in a specific format and write it to an OutputStream.</div>
  387. <dl>
  388. <dt><span class="paramLabel">Parameters:</span></dt>
  389. <dd><code>image</code> - The image to be encoded.</dd>
  390. <dd><code>format</code> - The <a href="../../../../org/jfree/chart/encoders/ImageFormat.html" title="interface in org.jfree.chart.encoders"><code>ImageFormat</code></a> to use.</dd>
  391. <dd><code>outputStream</code> - The OutputStream to write the encoded image to.</dd>
  392. <dd><code>quality</code> - The quality to use for the image encoding (not
  393. supported by all ImageEncoders).</dd>
  394. <dt><span class="throwsLabel">Throws:</span></dt>
  395. <dd><code>java.io.IOException</code> - if there is an IO problem.</dd>
  396. </dl>
  397. </li>
  398. </ul>
  399. <a name="writeBufferedImage-java.awt.image.BufferedImage-java.lang.String-java.io.OutputStream-boolean-">
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  403. <li class="blockList">
  404. <h4>writeBufferedImage</h4>
  405. <pre>public static&nbsp;void&nbsp;<a href="../../../../src-html/org/jfree/chart/encoders/EncoderUtil.html#line.163">writeBufferedImage</a>(java.awt.image.BufferedImage&nbsp;image,
  406. java.lang.String&nbsp;format,
  407. java.io.OutputStream&nbsp;outputStream,
  408. boolean&nbsp;encodeAlpha)
  409. throws java.io.IOException</pre>
  410. <div class="block">Encode the image in a specific format and write it to an OutputStream.</div>
  411. <dl>
  412. <dt><span class="paramLabel">Parameters:</span></dt>
  413. <dd><code>image</code> - The image to be encoded.</dd>
  414. <dd><code>format</code> - The <a href="../../../../org/jfree/chart/encoders/ImageFormat.html" title="interface in org.jfree.chart.encoders"><code>ImageFormat</code></a> to use.</dd>
  415. <dd><code>outputStream</code> - The OutputStream to write the encoded image to.</dd>
  416. <dd><code>encodeAlpha</code> - Whether to encode alpha transparency (not
  417. supported by all ImageEncoders).</dd>
  418. <dt><span class="throwsLabel">Throws:</span></dt>
  419. <dd><code>java.io.IOException</code> - if there is an IO problem.</dd>
  420. </dl>
  421. </li>
  422. </ul>
  423. <a name="writeBufferedImage-java.awt.image.BufferedImage-java.lang.String-java.io.OutputStream-float-boolean-">
  424. <!-- -->
  425. </a>
  426. <ul class="blockListLast">
  427. <li class="blockList">
  428. <h4>writeBufferedImage</h4>
  429. <pre>public static&nbsp;void&nbsp;<a href="../../../../src-html/org/jfree/chart/encoders/EncoderUtil.html#line.182">writeBufferedImage</a>(java.awt.image.BufferedImage&nbsp;image,
  430. java.lang.String&nbsp;format,
  431. java.io.OutputStream&nbsp;outputStream,
  432. float&nbsp;quality,
  433. boolean&nbsp;encodeAlpha)
  434. throws java.io.IOException</pre>
  435. <div class="block">Encode the image in a specific format and write it to an OutputStream.</div>
  436. <dl>
  437. <dt><span class="paramLabel">Parameters:</span></dt>
  438. <dd><code>image</code> - The image to be encoded.</dd>
  439. <dd><code>format</code> - The <a href="../../../../org/jfree/chart/encoders/ImageFormat.html" title="interface in org.jfree.chart.encoders"><code>ImageFormat</code></a> to use.</dd>
  440. <dd><code>outputStream</code> - The OutputStream to write the encoded image to.</dd>
  441. <dd><code>quality</code> - The quality to use for the image encoding (not
  442. supported by all ImageEncoders).</dd>
  443. <dd><code>encodeAlpha</code> - Whether to encode alpha transparency (not supported
  444. by all ImageEncoders).</dd>
  445. <dt><span class="throwsLabel">Throws:</span></dt>
  446. <dd><code>java.io.IOException</code> - if there is an IO problem.</dd>
  447. </dl>
  448. </li>
  449. </ul>
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