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<?php
// vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4:
/**
* Image rule end renderer for Xhtml
*
* PHP versions 4 and 5
*
* @category Text
* @package Text_Wiki
* @author Paul M. Jones <pmjones@php.net>
* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
* @version CVS: $Id: Image.php,v 1.16 2006/02/10 23:07:03 toggg Exp $
* @link http://pear.php.net/package/Text_Wiki
*/
/**
* This class inserts an image in XHTML.
*
* @category Text
* @package Text_Wiki
* @author Paul M. Jones <pmjones@php.net>
* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
* @version Release: @package_version@
* @link http://pear.php.net/package/Text_Wiki
*/
class Text_Wiki_Render_Xhtml_Image extends Text_Wiki_Render {
var $conf = array(
'base' => '/',
'url_base' => null,
'css' => null,
'css_link' => null
);
/**
*
* Renders a token into text matching the requested format.
*
* @access public
*
* @param array $options The "options" portion of the token (second
* element).
*
* @return string The text rendered from the token options.
*
*/
function token($options)
{
// note the image source
$src = $options['src'];
// is the source a local file or URL?
if (strpos($src, '://') === false) {
// the source refers to a local file.
// add the URL base to it.
$src = $this->getConf('base', '/') . $src;
}
// stephane@metacites.net
// is the image clickable?
if (isset($options['attr']['link'])) {
// yes, the image is clickable.
// are we linked to a URL or a wiki page?
if (strpos($options['attr']['link'], '://')) {
// it's a URL, prefix the URL base
$href = $this->getConf('url_base') . $options['attr']['link'];
} else {
// it's a WikiPage; assume it exists.
/** @todo This needs to honor sprintf wikilinks (pmjones) */
/** @todo This needs to honor interwiki (pmjones) */
/** @todo This needs to honor freelinks (pmjones) */
$href = $this->wiki->getRenderConf('xhtml', 'wikilink', 'view_url') .
$options['attr']['link'];
}
} else {
// image is not clickable.
$href = null;
}
// unset so it won't show up as an attribute
unset($options['attr']['link']);
// stephane@metacites.net -- 25/07/2004
// we make up an align="center" value for the <img> tag.
if (isset($options['attr']['align']) &&
$options['attr']['align'] == 'center') {
// unset so it won't show up as an attribute
unset($options['attr']['align']);
// make sure we have a style attribute
if (! isset($options['attr']['style'])) {
// no style, set up a blank one
$options['attr']['style'] = '';
} else {
// style exists, add a space
$options['attr']['style'] .= ' ';
}
// add a "center" style to the existing style.
$options['attr']['style'] .=
'display: block; margin-left: auto; margin-right: auto;';
}
// stephane@metacites.net -- 25/07/2004
// try to guess width and height
if (! isset($options['attr']['width']) &&
! isset($options['attr']['height'])) {
// does the source refer to a local file or a URL?
if (strpos($src,'://')) {
// is a URL link
$imageFile = $src;
} elseif ($src[0] == '.') {
// reg at dav-muz dot net -- 2005-03-07
// is a local file on relative path.
$imageFile = $src; # ...don't do anything because it's perfect!
} else {
// is a local file on absolute path.
$imageFile = $_SERVER['DOCUMENT_ROOT'] . $src;
}
// attempt to get the image size
$imageSize = @getimagesize($imageFile);
if (is_array($imageSize)) {
$options['attr']['width'] = $imageSize[0];
$options['attr']['height'] = $imageSize[1];
}
}
// start the HTML output
$output = '<img src="' . $this->textEncode($src) . '"';
// get the CSS class but don't add it yet
$css = $this->formatConf(' class="%s"', 'css');
// add the attributes to the output, and be sure to
// track whether or not we find an "alt" attribute
$alt = false;
foreach ($options['attr'] as $key => $val) {
// track the 'alt' attribute
if (strtolower($key) == 'alt') {
$alt = true;
}
// the 'class' attribute overrides the CSS class conf
if (strtolower($key) == 'class') {
$css = null;
}
$key = $this->textEncode($key);
$val = $this->textEncode($val);
$output .= " $key=\"$val\"";
}
// always add an "alt" attribute per Stephane Solliec
if (! $alt) {
$alt = $this->textEncode(basename($options['src']));
$output .= " alt=\"$alt\"";
}
// end the image tag with the automatic CSS class (if any)
$output .= "$css />";
// was the image clickable?
if ($href) {
// yes, add the href and return
$href = $this->textEncode($href);
$css = $this->formatConf(' class="%s"', 'css_link');
$output = "<a$css href=\"$href\">$output</a>";
}
return $output;
}
}
?>
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