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<?php
Prado::using('System.Web.UI.WebControls.Highlighter.geshi');
Prado::using('System.IO.TTextWriter');
/**
* ${classname}
*
* ${description}
*
* @author Wei Zhuo<weizhuo[at]gmail[dot]com>
* @version $Revision: 1.66 $ $Date: ${DATE} ${TIME} $
* @package ${package}
*/
class TTextHighlighter extends TWebControl
{
/**
* @return string tag name of the panel
*/
protected function getTagName()
{
return 'div';
}
public function getLanguage()
{
return $this->getViewState('Language', 'php');
}
public function setLanguage($value)
{
$this->setViewState('Language', $value, 'php');
}
public function setShowLineNumbers($value)
{
$this->setViewState('ShowLineNumbers', TPropertyValue::ensureBoolean($value), false);
}
public function getShowLineNumbers()
{
return $this->getViewState('ShowLineNumbers', false);
}
protected function onPreRender($writer)
{
parent::onPreRender($writer);
$this->registerTextHighlightStyleSheet();
}
public function addParsedObject($object)
{
if(is_string($object))
$object=html_entity_decode($object);
parent::addParsedObject($object);
}
protected function renderContents($writer)
{
$textWriter=new TTextWriter;
parent::renderContents(new THtmlWriter($textWriter));
$writer->write($this->highlightText($textWriter->flush()));
}
/**
* Register CSS style sheet file.
*/
protected function registerTextHighlightStyleSheet()
{
$cs = $this->getPage()->getClientScript();
if(!$cs->isStyleSheetFileRegistered(get_class($this)))
{
$styleSheet = $this->getAsset('Highlighter/code_highlight.css');
$cs->registerStyleSheetFile(get_class($this), $styleSheet);
}
}
/**
* Returns the highlighted text.
* @param string text to highlight.
* @return string highlighted text.
*/
protected function highlightText($text)
{
$geshi = new GeSHi(trim($text), $this->getLanguage());
if($this->getShowLineNumbers())
$geshi->enable_line_numbers(GESHI_NORMAL_LINE_NUMBERS);
$geshi->enable_classes();
return $geshi->parse_code();
}
}
?>
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