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  19. <head>

    20. 

  20. <meta http-equiv="Content-Language" content="en-us">

    21. 

  21. <link rel="stylesheet" type="text/css" href="../stylesheets/style.css">

    22. 

  22. <title>Image Task</title>

    23. 

  23. </head>

    24. 

  24. 

    25. 

  25. <body>

    26. 

  26. 

    27. 

  27. <h2><a name="image">Image</a></h2>

    28. 

  28. <h3>Description</h3>

    29. 

  29. <p>Applies a chain of image operations on a set of files.</p>

    30. 

  30. <p>Requires Java Advanced Image API from Sun.</p>

    31. 

  31. 

    32. 

  32. <h5>Overview of used datatypes</h5>

    33. 

  33. <img src="image-classdiagram.gif" border="0" alt="Class-Diagram">

    34. 

  34. 

    35. 

  35. <h3>Parameters</h3>

    36. 

  36. <table border="1" cellpadding="2" cellspacing="0">

    37. 

  37.   <tr>

    38. 

  38.     <td valign="top"><b>Attribute</b></td>

    39. 

  39.     <td valign="top"><b>Description</b></td>

    40. 

  40.     <td align="center" valign="top"><b>Required</b></td>

    41. 

  41.   </tr>

    42. 

  42.   <tr>

    43. 

  43.     <td valign="top"> failonerror </td>

    44. 

  44.     <td valign="top"> Boolean value. If false, note errors to the output but keep going. </td>

    45. 

  45.     <td align="center"> no (defaults to <i>true</i>) </td>

    46. 

  46.   </tr>

    47. 

  47.   <tr>

    48. 

  48.     <td valign="top"> srcdir </td>

    49. 

  49.     <td valign="top"> Directory containing the images. </td>

    50. 

  50.     <td align="center"> yes, unless nested fileset is used </td>

    51. 

  51.   </tr>

    52. 

  52.   <tr>

    53. 

  53.     <td valign="top"> encoding </td>

    54. 

  54.     <td valign="top"> Image encoding type. <br>

    55. 

  55.       Valid (caseinsensitive) are: jpg, jpeg, tif, tiff

    56. 

  56.     </td>

    57. 

  57.     <td align="center"> no (defaults to <i>JPEG</i>) </td>

    58. 

  58.   </tr>

    59. 

  59.   <tr>

    60. 

  60.     <td valign="top"> overwrite </td>

    61. 

  61.     <td valign="top"> Boolean value. Sets whether or not to overwrite

    62. 

  62.       a file if there is naming conflict.

    63. 

  63.     </td>

    64. 

  64.     <td align="center"> no (defaults to <i>false</i>) </td>

    65. 

  65.   </tr>

    66. 

  66.   <tr>

    67. 

  67.     <td valign="top"> gc </td>

    68. 

  68.     <td valign="top"> Boolean value. Enables garbage collection after

    69. 

  69.       each image processed.

    70. 

  70.     </td>

    71. 

  71.     <td align="center"> no (defaults to <i>false</i>) </td>

    72. 

  72.   </tr>

    73. 

  73.   <tr>

    74. 

  74.     <td valign="top"> destdir </td>

    75. 

  75.     <td valign="top"> Directory where the result images are stored. </td>

    76. 

  76.     <td align="center"> no (defaults to value of <i>srcdir</i>) </td>

    77. 

  77.   </tr>

    78. 

  78.   <!-- attributes inherited from MatchingTask -->

    79. 

  79.   <tr>

    80. 

  80.     <td valign="top">includes</td>

    81. 

  81.     <td valign="top">comma- or space-separated list of patterns of files that must be

    82. 

  82.       included. All files are included when omitted.</td>

    83. 

  83.     <td valign="top" align="center">No</td>

    84. 

  84.   </tr>

    85. 

  85.   <tr>

    86. 

  86.     <td valign="top">includesfile</td>

    87. 

  87.     <td valign="top">the name of a file. Each line of this file is

    88. 

  88.       taken to be an include pattern</td>

    89. 

  89.     <td valign="top" align="center">No</td>

    90. 

  90.   </tr>

    91. 

  91.   <tr>

    92. 

  92.     <td valign="top"> excludes</td>

    93. 

  93.     <td valign="top">comma- or space-separated list of patterns of files that must be

    94. 

  94.       excluded. No files (except default excludes) are excluded when omitted.</td>

    95. 

  95.     <td valign="top" align="center">No</td>

    96. 

  96.   </tr>

    97. 

  97.   <tr>

    98. 

  98.     <td valign="top">excludesfile</td>

    99. 

  99.     <td valign="top">the name of a file. Each line of this file is

    100. 

  100.       taken to be an exclude pattern</td>

    101. 

  101.     <td valign="top" align="center">No</td>

    102. 

  102.   </tr>

    103. 

  103.   <tr>

    104. 

  104.     <td valign="top">defaultexcludes</td>

    105. 

  105.     <td valign="top">indicates whether default excludes should be used or not

    106. 

  106.       (&quot;yes&quot;/&quot;no&quot;). Default excludes are used when omitted.</td>

    107. 

  107.     <td valign="top" align="center">No</td>

    108. 

  108.   </tr>

    109. 

  109.   <tr>

    110. 

  110.     <td valign="top"> caseSensitive </td>

    111. 

  111.     <td valign="top"> Boolean value. Sets case sensitivity of the file system. </td>

    112. 

  112.     <td align="center"> no (defaults to <i>false</i>) </td>

    113. 

  113.   </tr>

    114. 

  114.   <tr>

    115. 

  115.     <td valign="top"> followSymlinks </td>

    116. 

  116.     <td valign="top"> Boolean value. Sets whether or not symbolic links should be followed. </td>

    117. 

  117.     <td align="center"> no (defaults to <i>true</i>) </td>

    118. 

  118.   </tr>

    119. 

  119. </table>

    120. 

  120. 

    121. 

  121. <h3>Parameters specified as nested elements</h3>

    122. 

  122. <p>This task forms an implicit <a href="../Types/fileset.html">FileSet</a> and

    123. 

  123. supports most attributes of <code>&lt;fileset&gt;</code> as well as the

    124. 

  124. nested <code>&lt;include&gt;</code>, <code>&lt;exclude&gt;</code> and

    125. 

  125. <code>&lt;patternset&gt;</code> elements.</p>

    126. 

  126. 

    127. 

  127. 

    128. 

  128. <h4>ImageOperation</h4>

    129. 

  129. <p>Adds an ImageOperation to chain.</p>

    130. 

  130. <h5>Nested Elements</h5>

    131. 

  131. ImageOperation can handle nested Rotate, Draw, Rectangle, Text and Scale objects.

    132. 

  132. 

    133. 

  133. <h4>Rotate</h4>

    134. 

  134. <p>Adds a Rotate ImageOperation to chain.</p>

    135. 

  135. <h5>Parameters</h5>

    136. 

  136. <table border="1" cellpadding="2" cellspacing="0">

    137. 

  137.   <tr>

    138. 

  138.     <td valign="top"><b>Attribute</b></td>

    139. 

  139.     <td valign="top"><b>Description</b></td>

    140. 

  140.     <td align="center" valign="top"><b>Required</b></td>

    141. 

  141.   </tr>

    142. 

  142.   <tr>

    143. 

  143.     <td valign="top"> angle </td>

    144. 

  144.     <td valign="top"> Float value. Sets the angle of rotation in degrees. </td>

    145. 

  145.     <td align="center"> no (defaults to <i>0.0F</i>) </td>

    146. 

  146.   </tr>

    147. 

  147. </table>

    148. 

  148. 

    149. 

  149. <h4>Scale</h4>

    150. 

  150. <p>Adds a Scale ImageOperation to chain.</p>

    151. 

  151. <h5>Parameters</h5>

    152. 

  152. <table border="1" cellpadding="2" cellspacing="0">

    153. 

  153.   <tr>

    154. 

  154.     <td valign="top"><b>Attribute</b></td>

    155. 

  155.     <td valign="top"><b>Description</b></td>

    156. 

  156.     <td align="center" valign="top"><b>Required</b></td>

    157. 

  157.   </tr>

    158. 

  158.     <td valign="top"> proportions </td>

    159. 

  159.     <td valign="top"> Sets which dimension to control proportions from. Valid values are:<ul>

    160. 

  160.         <li>&quot;ignore&quot; -  treat the dimensions independently.</li>

    161. 

  161.         <li>&quot;height&quot; - keep proportions based on the width.</li>

    162. 

  162.         <li>&quot;width&quot; - keep proportions based on the height.</li>

    163. 

  163.         <li>&quot;cover&quot; - keep proportions and fit in the supplied dimensions.</li>

    164. 

  164.         <li>&quot;fit&quot; - keep proportions and cover the supplied dimensions.</li>

    165. 

  165.     </ul></td>

    166. 

  166.     <td align="center"> no (defaults to <i>ignore</i>) </td>

    167. 

  167.   <tr>

    168. 

  168.     <td valign="top"> width </td>

    169. 

  169.     <td valign="top"> Sets the width of the image, either as an integer or a %. </td>

    170. 

  170.         <!-- todo: if integer, what kind? cm, px, inches, ... -->

    171. 

  171.     <td align="center"> no (defaults to <i>100%</i>) </td>

    172. 

  172.   </tr>

    173. 

  173.   <tr>

    174. 

  174.     <td valign="top"> height </td>

    175. 

  175.     <td valign="top"> Sets the height of the image, either as an integer or a %. </td>

    176. 

  176.         <!-- todo: if integer, what kind? cm, px, inches, ... -->

    177. 

  177.     <td align="center"> no (defaults to <i>100%</i>) </td>

    178. 

  178.   </tr>

    179. 

  179. </table>

    180. 

  180. 

    181. 

  181. <h4>Draw</h4>

    182. 

  182. <p>Adds a Draw ImageOperation to chain. DrawOperation DataType objects can be

    183. 

  183. nested inside the Draw object.</p>

    184. 

  184. <h5>Parameters</h5>

    185. 

  185. <table border="1" cellpadding="2" cellspacing="0">

    186. 

  186.   <tr>

    187. 

  187.     <td valign="top"><b>Attribute</b></td>

    188. 

  188.     <td valign="top"><b>Description</b></td>

    189. 

  189.     <td align="center" valign="top"><b>Required</b></td>

    190. 

  190.   </tr>

    191. 

  191.   <tr>

    192. 

  192.     <td valign="top"> xloc </td>

    193. 

  193.     <td valign="top"> X-Position where to draw nested image elements. </td>

    194. 

  194.     <td align="center"> no (defaults to <i>0</i>) </td>

    195. 

  195.   </tr>

    196. 

  196.   <tr>

    197. 

  197.     <td valign="top"> yloc </td>

    198. 

  198.     <td valign="top"> Y-Position where to draw nested image elements. </td>

    199. 

  199.     <td align="center"> no (defaults to <i>0</i>) </td>

    200. 

  200.   </tr>

    201. 

  201. </table>

    202. 

  202. 

    203. 

  203. <h4>mapper</h4>

    204. 

  204. <p><em>Since Apache Ant 1.8.0</em></p>

    205. 

  205. 

    206. 

  206. <p>You can define filename transformations by using a

    207. 

  207.   nested <a href="../Types/mapper.html">mapper</a> element. The

    208. 

  208.   default mapper used by

    209. 

  209.   <code>&lt;image&gt;</code> is

    210. 

  210.   the <a href="../Types/mapper.html#identity-mapper">identity

    211. 

  211.   mapper</a>.</p>

    212. 

  212. 

    213. 

  213. <p>You can also use a filenamemapper type in place of the mapper

    214. 

  214.   element.</p>

    215. 

  215. 

    216. 

  216. <h3>Examples</h3>

    217. 

  217. 

    218. 

  218. <blockquote><pre>

    219. 

  219. &nbsp;&lt;image destdir="samples/low" overwrite="yes"&gt;

    220. 

  220. &nbsp;&nbsp;&nbsp;&nbsp; &lt;fileset dir="samples/full"&gt;

    221. 

  221. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;include name="**/*.jpg"/&gt;

    222. 

  222. &nbsp;&nbsp;&nbsp;&nbsp; &lt;/fileset&gt;

    223. 

  223. &nbsp;&nbsp;&nbsp;&nbsp; &lt;scale width="160" height="160" proportions="fit"/&gt;

    224. 

  224. &nbsp;&lt;/image&gt;

    225. 

  225. </pre></blockquote>

    226. 

  226. <p>Create thumbnails of my images and make sure they all fit within the 160x160 size whether the

    227. 

  227. image is portrait or landscape.</p>

    228. 

  228. 

    229. 

  229. <blockquote><pre>

    230. 

  230. &lt;image srcdir="src" includes="*.png"&gt;

    231. 

  231.     &lt;scale proportions="width" width="40"/&gt;

    232. 

  232. &lt;/image&gt;

    233. 

  233. </pre></blockquote>

    234. 

  234. <p>Creates a thumbnail for all PNG-files in <i>src</i> in the size of 40 pixel keeping the proportions

    235. 

  235. and stores the <i>src</i>.</p>

    236. 

  236. 

    237. 

  237. <blockquote><pre>

    238. 

  238. &lt;image srcdir="src" destdir="dest" includes="*.png"&gt;

    239. 

  239.     &lt;scale proportions="width" width="40"/&gt;

    240. 

  240. &lt;/image&gt;

    241. 

  241. </pre></blockquote>

    242. 

  242. <p>Same as above but stores the result in <i>dest</i>.</p>

    243. 

  243. 

    244. 

  244. <blockquote><pre>

    245. 

  245. &lt;image srcdir="src" destdir="dest" includes="*.png"&gt;

    246. 

  246.     &lt;scale proportions="width" width="40"/&gt;

    247. 

  247.     &lt;globmapper from="*" to="scaled-*"/&gt;

    248. 

  248. &lt;/image&gt;

    249. 

  249. </pre></blockquote>

    250. 

  250. <p>Same as above but stores the resulting file names will be prefixed

    251. 

  251.   by "scaled-".</p>

    252. 

  252. 

    253. 

  253. <blockquote><pre>

    254. 

  254. </pre></blockquote>

    255. 

  255. 

    256. 

  256. 

    257. 

  257. 

    258. 

  258. </body>

    259. 

  259. </html>

    260. 

  260. 

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  262.