<?php
/******************************************************************************
* File      	:	$RCSfile: class.imagecontainer.php,v $
* Project   	:   pdfDOM
* Description	:   Container object
* Author    	:   Timo A. Hummel <hide@address.com>
* Created   	:   29.01.2003
* Modified  	:   $Date: 2005/06/23 13:36:22 $
*
* This file is part of the pdfDOM project.
*
* More information: 
* http://www.pdfdom.org
* http://www.sf.net/projects/pdfdom
*
* © four for business AG, www.4fb.de
*
* $Id: class.imagecontainer.php,v 1.3 2005/06/23 13:36:22 timo_h Exp $
******************************************************************************/

class pdImageContainer extends pdContainer {

    // Attributes
    /**
     * Represent ...
     */
    var $_image;

    /**
     * Represent ...
     */
    var $_mode;

	function pdImageContainer ()
	{
		parent::pdContainer();
		
		$this->setImageMode("scale");
	}
    // Operations
    /**
     * Does ...
     * @param mode 
     */
    function setImageMode($mode) 
    {
        $this->_mode = $mode;
    } // end operation setImageMode

    /**
     * Does ...
     * @param path 
     */
    function setImage($path) 
    {
        $this->_image = $path;
    } // end operation setImage
	
	function scaleImg ($x, $y, $maxX, $maxY)
	{
		/* Calculate the aspect ratio */	
    	$aspectXY = $x / $y;
    	$aspectYX = $y / $x;
    	
    	/* Check which axis has the higher aspect ratio */
    	if (($maxX / $x) < ($maxY / $y))
    	{
    		$targetY = $y * ($maxX / $x);
    		$targetX = $maxX;
    	} else {
    		$targetX = $x * ($maxY / $y);
    		$targetY = $maxY;
    	}
    	
    	return array($targetX, $targetY);
	}
	
	function customRender ()
	{
		global $_pdfDom_PDF;
		
		list($x, $y, $x1, $y1) = $this->getInnerRectangle();
		list($imgW, $imgH) = getimagesize($this->_image);

		$w = $x1 - $x;
		$h = $y1 - $y;

		list($w, $h) = $this->scaleImg($imgW, $imgH, $w, $h);
		
		
		switch ($this->_mode)
		{
			case "scale":
					$_pdfDom_PDF->Image($this->_image, $x, $y, $w, $h);
					break;
			case "stretch":
					$_pdfDom_PDF->Image($this->_image, $x, $y, $x1 - $x, $y1 - $y);
					break;
			default:
					list($w, $h) = $this->correctAspectRatio($w, $h, $w, $h);
					break;		
		}
	}
	
	function preRender ()
	{
		if ($this->_mode == "scale")
		{
			list($x, $y, $x1, $y1) = $this->getInnerRectangle();
			list($imgW, $imgH) = getimagesize($this->_image);
	
			$w = $x1 - $x;
			$h = $y1 - $y;
	
			list($w, $h) = $this->scaleImg($imgW, $imgH, $w, $h);
	
			$this->coordinates->setWidth($w);
			$this->coordinates->setHeight($h);
		}	
		
	}

} // end class pdImageContainer
?>