2 rcs_id('$Id: Ploticus.php,v 1.9 2004-09-26 17:09:23 rurban Exp $');
4 Copyright 2004 $ThePhpWikiProgrammingTeam
6 This file is part of PhpWiki.
8 PhpWiki is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 PhpWiki is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with PhpWiki; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * The Ploticus plugin passes all its arguments to the ploticus
25 * binary and displays the result as PNG, GIF, EPS, SVG or SWF.
26 * Ploticus is a free, GPL, non-interactive software package
27 * for producing plots, charts, and graphics from data.
28 * See http://ploticus.sourceforge.net/doc/welcome.html
30 * @Author: Reini Urban
33 * - For windows you need either a gd library with GIF support or
34 * a ploticus with PNG support. This comes e.g. with the cygwin build.
35 * - We support only images supported by GD so far (PNG most likely).
36 * No EPS, PS, SWF, SVG or SVGZ support yet, due to limitations in WikiPluginCached.
37 * This will be fixed soon.
40 <?plugin Ploticus device=png [ploticus options...]
41 multiline ploticus script ...
43 * or without any script: (not tested)
44 <?plugin Ploticus -prefab vbars data=myfile.dat delim=tab y=1 clickmapurl="http://mywiki.url/wiki/?pagename=@2" clickmaplabel="@3" -csmap ?>
46 * TODO: PloticusSql - create intermediate data from SQL. Similar to SqlResult, just in graphic form.
47 * For example to produce nice looking pagehit statistics or ratings statistics.
48 * Ploticus has its own sql support within #getproc data, but this would expose security information.
51 if (!defined("PLOTICUS_EXE"))
53 define('PLOTICUS_EXE','pl.exe');
55 define('PLOTICUS_EXE','/usr/local/bin/pl');
57 require_once "lib/WikiPluginCached.php";
59 class WikiPlugin_Ploticus
60 extends WikiPluginCached
63 * Sets plugin type to MAP if -csmap (-map or -mapdemo or -csmapdemo not supported)
64 * or HTML if the imagetype is not supported by GD (EPS, SVG, SVGZ) (not yet)
65 * or IMG_INLINE if device = png, gif or jpeg
67 function getPluginType() {
68 if (!empty($this->_args['-csmap']))
69 return PLUGIN_CACHED_MAP; // not yet tested
70 // produce these on-demand so far, uncached.
71 // will get better support in WikiPluginCached soon.
72 // FIXME: html also? what about ''?
73 $type = $this->decideImgType($this->_args['device']);
74 if ($type == $this->_args['device'])
75 return PLUGIN_CACHED_IMG_INLINE;
76 $device = strtolower($this->_args['device']);
77 if (in_array($device, array('svg','swf','svgz','eps','ps','pdf','html'))) {
78 switch ($this->_args['device']) {
81 return PLUGIN_CACHED_STATIC | PLUGIN_CACHED_SVG_PNG;
83 return PLUGIN_CACHED_STATIC | PLUGIN_CACHED_SWF;
85 return PLUGIN_CACHED_STATIC | PLUGIN_CACHED_HTML;
89 return PLUGIN_CACHED_IMG_INLINE; // normal cached libgd image handles
94 function getDescription () {
95 return _("Ploticus image creation");
97 function managesValidators() {
100 function getVersion() {
101 return preg_replace("/[Revision: $]/", '',
102 "\$Revision: 1.9 $");
104 function getDefaultArguments() {
106 'device' => 'png', // png,gif,svgz,svg,...
109 'data' => false, // <!plugin-list !> support
114 function handle_plugin_args_cruft(&$argstr, &$args) {
115 $this->source = $argstr;
118 * Sets the expire time to one day (so the image producing
119 * functions are called seldomly) or to about two minutes
120 * if a help screen is created.
122 function getExpire($dbi, $argarray, $request) {
123 if (!empty($argarray['help']))
124 return '+120'; // 2 minutes
125 return sprintf('+%d', 3*86000); // approx 3 days
129 * Sets the imagetype according to user wishes and
130 * relies on WikiPluginCached to catch illegal image
132 * (I feel unsure whether this option is reasonable in
133 * this case, because png will definitely have the
136 * @return string 'png', 'jpeg', 'gif'
138 function getImageType($dbi, $argarray, $request) {
139 return $argarray['device'];
143 * This gives an alternative text description of
146 function getAlt($dbi, $argstr, $request) {
147 return (!empty($this->_args['alt'])) ? $this->_args['alt']
148 : $this->getDescription();
152 * Returns an image containing a usage description of the plugin.
154 * TODO: -csmap pointing to the Ploticus documentation at sf.net.
155 * @return string image handle
157 function helpImage() {
158 $def = $this->defaultArguments();
159 //$other_imgtypes = $GLOBALS['PLUGIN_CACHED_IMGTYPES'];
160 //unset ($other_imgtypes[$def['imgtype']]);
162 '<?plugin Ploticus ' .
163 'device' => ' = "' . $def['device'] . "(default)|" . join('|',$GLOBALS['PLUGIN_CACHED_IMGTYPES']).'"',
164 'data' => ' <!plugin-list !>: pagelist as input',
165 'alt' => ' = "alternate text"',
166 '-csmap' => ' bool: clickable map?',
167 'help' => ' bool: displays this screen',
168 '...' => ' all further lines below the first plugin line ',
169 '' => ' and inside the tags are the ploticus script.',
173 foreach($helparr as $alignright => $alignleft) {
174 $length = max($length, strlen($alignright));
177 foreach($helparr as $alignright => $alignleft) {
178 $helptext .= substr(' '
179 . $alignright, -$length).$alignleft."\n";
181 return $this->text2img($helptext, 4, array(1, 0, 0),
182 array(255, 255, 255));
185 function withShellCommand($script) {
187 $pos = strpos($script, $findme); // uppercase?
193 function getImage($dbi, $argarray, $request) {
194 //extract($this->getArgs($argstr, $request));
195 //extract($argarray);
196 $source =& $this->source;
197 if (!empty($source)) {
198 if ($this->withShellCommand($source)) {
199 $this->_errortext .= _("shell commands not allowed in Ploticus");
202 if (is_array($argarray['data'])) { // support <!plugin-list !> pagelists
203 $src = "#proc getdata\ndata:";
205 foreach ($argarray['data'] as $data) {
208 $src .= ("\t" . join(" ", $data) . "\n");
210 $src .= ("\t" . '"' . $data . '" ' . $i++ . "\n");
215 $tempfile = $this->tempnam('Ploticus');
217 $gif = $argarray['device'];
218 $args = " -stdin -$gif -o $tempfile.$gif";
219 if (!empty($argarray['-csmap'])) {
220 $args .= " -csmap -mapfile $tempfile.map";
221 $this->_mapfile = "$tempfile.map";
223 if (!empty($argarray['-prefab'])) {
224 //TODO: check $_ENV['PLOTICUS_PREFABS'] and default directory
225 $args .= (" -prefab " . $argarray['-prefab']);
227 $code = $this->filterThroughCmd($source, PLOTICUS_EXE . "$args");
229 // return $this->error(fmt("Couldn't start commandline '%s'", $commandLine));
230 if (! file_exists("$tempfile.$gif") ) {
231 $this->_errortext .= sprintf(_("Ploticus error: Outputfile '%s' not created"), "$tempfile.$gif");
234 $ImageCreateFromFunc = "ImageCreateFrom$gif";
235 if (function_exists($ImageCreateFromFunc))
236 return $ImageCreateFromFunc( "$tempfile.$gif" );
237 return "$tempfile.$gif";
239 return $this->error(fmt("empty source"));
243 // which argument must be set to 'png', for the fallback image when svg will fail on the client.
249 function getMap($dbi, $argarray, $request) {
250 $img = $this->getImage($dbi, $argarray, $request);
251 return array($this->_mapfile, $img);
255 // $Log: not supported by cvs2svn $
256 // Revision 1.8 2004/09/22 15:23:56 rurban
257 // support <!plugin-list !> pagelist data
258 // add -prefab arg support
260 // Revision 1.7 2004/09/22 13:46:26 rurban
261 // centralize upload paths.
262 // major WikiPluginCached feature enhancement:
263 // support _STATIC pages in uploads/ instead of dynamic getimg.php? subrequests.
264 // mainly for debugging, cache problems and action=pdf
266 // Revision 1.6 2004/09/07 13:26:31 rurban
267 // new WikiPluginCached option debug=static and some more sf.net defaults for VisualWiki
269 // Revision 1.5 2004/06/28 16:35:12 rurban
270 // prevent from shell commands
272 // Revision 1.4 2004/06/19 10:06:38 rurban
273 // Moved lib/plugincache-config.php to config/*.ini
274 // use PLUGIN_CACHED_* constants instead of global $CacheParams
276 // Revision 1.3 2004/06/03 09:40:57 rurban
277 // WikiPluginCache improvements
279 // Revision 1.2 2004/06/02 19:37:07 rurban
280 // extended description
282 // Revision 1.1 2004/06/02 19:12:42 rurban
283 // new Ploticus plugin
292 // c-hanging-comment-ender-p: nil
293 // indent-tabs-mode: nil