1 files changed, 51 insertions, 0 deletions
diff --git a/lib/less.php/Tree/Alpha.php b/lib/less.php/Tree/Alpha.php
new file mode 100644
index 0000000..935377d
--- /dev/null
+++ b/lib/less.php/Tree/Alpha.php
@@ -0,0 +1,51 @@
+<?php
+
+/**
+ * Alpha
+ *
+ * @package Less
+ * @subpackage tree
+ */
+class Less_Tree_Alpha extends Less_Tree{
+	public $value;
+	public $type = 'Alpha';
+
+	public function __construct($val){
+		$this->value = $val;
+	}
+
+	//function accept( $visitor ){
+	//	$this->value = $visitor->visit( $this->value );
+	//}
+
+	public function compile($env){
+
+		if( is_object($this->value) ){
+			$this->value = $this->value->compile($env);
+		}
+
+		return $this;
+	}
+
+    /**
+     * @see Less_Tree::genCSS
+     */
+	public function genCSS( $output ){
+
+		$output->add( "alpha(opacity=" );
+
+		if( is_string($this->value) ){
+			$output->add( $this->value );
+		}else{
+			$this->value->genCSS( $output);
+		}
+
+		$output->add( ')' );
+	}
+
+	public function toCSS(){
+		return "alpha(opacity=" . (is_string($this->value) ? $this->value : $this->value->toCSS()) . ")";
+	}
+
+
+}
+\ No newline at end of file