1 files changed, 92 insertions, 0 deletions
diff --git a/framework/Web/UI/WebControls/TTextHighlighter.php b/framework/Web/UI/WebControls/TTextHighlighter.php
new file mode 100644
index 00000000..ec21b344
--- /dev/null
+++ b/framework/Web/UI/WebControls/TTextHighlighter.php
@@ -0,0 +1,92 @@
+<?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();
+	}
+}
+?>
+\ No newline at end of file