/**
* function insert_image
* Insert the image tag for the given image. Make sure it is present first.
* @param string $texcode The TeX code
* @param integer $post_id The Post ID
* @param integer $commend_id The Comment ID if a comment
* @return string The html image tag
*/
private function insert_image($texcode, $post_id, $comment_id = null, $texcontainer = '%s', $outputcontainer = '%s')
{
//Set the LaTeX code in its container
$texcode = sprintf($texcontainer, $texcode);
//Set the group and name for RenderCache
$group = 'jLaTeX';
$name = $post_id . '-' . $comment_id . '-' . md5($texcode);
//If the image is not in cache, render it
if (!RenderCache::has(array($group, $name))) {
if ($this->render_image($texcode, $post_id, $comment_id) === false) {
return $this->error_format($texcode);
}
}
//Get the url of the image
$file_url = RenderCache::get_url(array($group, $name));
//Return the image tag
return sprintf($outputcontainer, "<img src=\"{$file_url}\" alt=\"" . trim($texcode) . "\" class=\"jLaTeX\">");
}
