1 files changed, 74 insertions, 0 deletions
diff --git a/src/libchart/classes/Color.php b/src/libchart/classes/Color.php
new file mode 100644
index 0000000..178435b
--- /dev/null
+++ b/src/libchart/classes/Color.php
@@ -0,0 +1,74 @@
+<?php
+	/** Libchart - PHP chart library
+	*	
+	* Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
+	* 	
+	* This library is free software; you can redistribute it and/or
+	* modify it under the terms of the GNU Lesser General Public
+	* License as published by the Free Software Foundation; either
+	* version 2.1 of the License, or (at your option) any later version.
+	* 
+	* This library is distributed in the hope that it will be useful,
+	* but WITHOUT ANY WARRANTY; without even the implied warranty of
+	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+	* Lesser General Public License for more details.
+	* 
+	* You should have received a copy of the GNU Lesser General Public
+	* License along with this library; if not, write to the Free Software
+	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+	* 
+	*/
+	
+	/**
+	* Color
+	*
+	* @author   Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
+	*/
+
+	class Color
+	{
+		/**
+		* Creates a new color
+		*
+		* @access	public
+		* @param	integer		red [0,255]
+		* @param	integer		green [0,255]
+		* @param	integer		blue [0,255]
+		* @param	integer		alpha [0,255]
+		*/
+		
+		function Color($red, $green, $blue, $alpha = 0)
+		{
+			$this->red = (int)$red;
+			$this->green = (int)$green;
+			$this->blue = (int)$blue;
+			$this->alpha = (int)round($alpha * 127.0 / 255);
+			
+			$this->gdColor = null;
+		}
+		
+		/**
+		* Get GD color
+		*
+		* @access	public
+		* @param	$img		GD image resource
+		*/
+		
+		function getColor($img)
+		{
+			// Checks if color has already been allocated
+			
+			if(!$this->gdColor)
+			{
+				if($this->alpha == 0 || !function_exists('imagecolorallocatealpha'))
+					$this->gdColor = imagecolorallocate($img, $this->red, $this->green, $this->blue);
+				else
+					$this->gdColor = imagecolorallocatealpha($img, $this->red, $this->green, $this->blue, $this->alpha);
+			}
+			
+			// Returns GD color
+			
+			return $this->gdColor;
+		}
+	}
+?>