<?php
	/**
    This file is part of WideImage.
		
    WideImage 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.
		
    WideImage 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 WideImage; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  **/
	
	class wioMerge
	{
		function execute($base, $overlay, $x, $y, $pct)
		{
			$result = $base->asTrueColor();
			$result->alphaBlending(true);
			$result->saveAlpha(true);
			
			if ($pct == 0)
				return $result;
			
			if ($pct < 100)
				imagecopymerge(
					$result->getHandle(), 
					$overlay->getHandle(), 
					$x, $y, 0, 0, 
					$overlay->getWidth(), 
					$overlay->getHeight(), 
					$pct
				);
			else
				imagecopy(
					$result->getHandle(), 
					$overlay->getHandle(), 
					$x, $y, 0, 0, 
					$overlay->getWidth(), 
					$overlay->getHeight() 
				);
			
			return $result;
		}
	}
?>