includes/wikiengine/Render/Xhtml/Image.php
changeset 1 fe660c52c48f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/includes/wikiengine/Render/Xhtml/Image.php	Wed Jun 13 16:07:17 2007 -0400
@@ -0,0 +1,180 @@
+<?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;
+    }
+}
+?>