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<?php
/**
 * @package    J-BusinessDirectory
 *
 * @author     CMSJunkie http://www.cmsjunkie.com/
 * @copyright  Copyright (C) 2007 - 2022 CMSJunkie. All rights reserved.
 * @license    https://www.gnu.org/licenses/agpl-3.0.en.html
 */

require_once(JPATH_COMPONENT_SITE.DS.'libraries'.DS.'tfpdf'.DS.'tfpdf.php');

class FPDF_HELPER extends tFPDF
{

    const DPI = 64;
    const MM_IN_INCH = 25.4;
    const A4_WIDTH = 297;
    const A4_HEIGHT = 210;    
    const MAX_WIDTH = 200;
    const MAX_HEIGHT = 200;

    function pixelsToMM($val) {
        return $val * self::MM_IN_INCH / self::DPI;
    }

    function resizeToFit($imgFilename) {
        list($width, $height) = getimagesize($imgFilename);

        $widthScale = self::MAX_WIDTH / $width;
        $heightScale = self::MAX_HEIGHT / $height;

        $scale = min($widthScale, $heightScale);

        return array(
            round($this->pixelsToMM($scale * $width)),
            round($this->pixelsToMM($scale * $height))
        );
    }

    function centreImage($img) {
        list($width, $height) = $this->resizeToFit($img);
        
        $this->Image(
            $img, (self::A4_HEIGHT - $width) / 2,
            (self::A4_WIDTH - $height) / 2,
            $width,
            $height
        );
    }


    var $angle=0;

    function Rotate($angle,$x=-1,$y=-1)
    {
        if($x==-1)
            $x=$this->x;
        if($y==-1)
            $y=$this->y;
        if($this->angle!=0)
            $this->_out('Q');
        $this->angle=$angle;
        if($angle!=0)
        {
            $angle*=M_PI/180;
            $c=cos($angle);
            $s=sin($angle);
            $cx=$x*$this->k;
            $cy=($this->h-$y)*$this->k;
            $this->_out(sprintf('q %.5F %.5F %.5F %.5F %.2F %.2F cm 1 0 0 1 %.2F %.2F cm',$c,$s,-$s,$c,$cx,$cy,-$cx,-$cy));
        }
    }

    function _endpage()
    {
        if($this->angle!=0)
        {
            $this->angle=0;
            $this->_out('Q');
        }
        parent::_endpage();
    }

    function RotatedText($x,$y,$txt,$angle)
    {
        //Text rotated around its origin
        $this->Rotate($angle,$x,$y);
        $this->Text($x,$y,$txt);
        $this->Rotate(0);
    }

    function RotatedImage($file,$x,$y,$w,$h,$angle)
    {
        //Image rotated around its upper-left corner
        $this->Rotate($angle,$x,$y);
        $this->Image($file,$x,$y,$w,$h);
        $this->Rotate(0);
    }

    function SetDash($black=null, $white=null)
    {
        if($black!==null)
            $s=sprintf('[%.3F %.3F] 0 d',$black*$this->k,$white*$this->k);
        else
            $s='[] 0 d';
        $this->_out($s);
    }


}
?>