WB 2.11.0

<?php

/**

 *

 * @category        admin

 * @package         admintools

 * @author          WebsiteBaker Project

 * @copyright       Ryan Djurovich

 * @copyright       WebsiteBaker Org. e.V.

 * @link            http://websitebaker.org/

 * @license         http://www.gnu.org/licenses/gpl.html

 * @platform        WebsiteBaker 2.8.3

 * @requirements    PHP 5.3.6 and higher

 * @version         $Id: resize_img.php 2 2017-07-02 15:14:29Z Manuela $

 * @filesource      $HeadURL: svn://isteam.dynxs.de/wb/2.10.x/trunk/admin/media/resize_img.php $

 * @lastmodified    $Date: 2017-07-02 17:14:29 +0200 (Sun, 02 Jul 2017) $

 *

 */

    /**

     * Image Resizer.

     * @author : Harish Chauhan

     * @copyright : Freeware

     * About :This PHP script will resize the given image and can show on the fly or save as image file.

     *

     */

    define("HAR_AUTO_NAME",1);

    Class RESIZEIMAGE

    {

        var $imgFile="";

        var $imgWidth=0;

        var $imgHeight=0;

        var $imgType="";

        var $imgAttr="";

        var $type=NULL;

        var $_img=NULL;

        var $_error="";

        /**

         * Constructor

         *

         * @param [String $imgFile] Image File Name

         * @return RESIZEIMAGE (Class Object)

         */

        public function __construct($imgFile="")

        {

            if (!function_exists("imagecreate"))

            {

                $this->_error="Error: GD Library is not available.";

                return false;

            }

            $this->type=Array(1 => 'GIF', 2 => 'JPG', 3 => 'PNG', 4 => 'SWF', 5 => 'PSD', 6 => 'BMP', 7 => 'TIFF', 8 => 'TIFF', 9 => 'JPC', 10 => 'JP2', 11 => 'JPX', 12 => 'JB2', 13 => 'SWC', 14 => 'IFF', 15 => 'WBMP', 16 => 'XBM');

            if(!empty($imgFile))

                $this->setImage($imgFile);

        }

        /**

         * Error occured while resizing the image.

         *

         * @return String

         */

        function error()

        {

            return $this->_error;

        }

        /**

         * Set image file name

         *

         * @param String $imgFile

         * @return void

         */

        function setImage($imgFile)

        {

            $this->imgFile=$imgFile;

            return $this->_createImage();

        }

        /**

         *

         * @return void

         */

        function close()

        {

            return @imagedestroy($this->_img);

        }

        /**

         * Resize a image to given width and height and keep it's current width and height ratio

         *

         * @param Number $imgwidth

         * @param Numnber $imgheight

         * @param String $newfile

         */

        function resize_limitwh($imgwidth,$imgheight,$newfile=NULL)

        {

            $image_per = 100;

            list($width, $height, $type, $attr) = @getimagesize($this->imgFile);

            if($width > $imgwidth && $imgwidth > 0)

                $image_per = (double)(($imgwidth * 100) / $width);

            if(floor(($height * $image_per)/100)>$imgheight && $imgheight > 0)

                $image_per = (double)(($imgheight * 100) / $height);

            $this->resize_percentage($image_per,$newfile);

        }

        /**

         * Resize an image to given percentage.

         *

         * @param Number $percent

         * @param String $newfile

         * @return Boolean

         */

        function resize_percentage($percent=100,$newfile=NULL)

        {

            $newWidth=($this->imgWidth*$percent)/100;

            $newHeight=($this->imgHeight*$percent)/100;

            return $this->resize($newWidth,$newHeight,$newfile);

        }

        /**

         * Resize an image to given X and Y percentage.

         *

         * @param Number $xpercent

         * @param Number $ypercent

         * @param String $newfile

         * @return Boolean

         */

        function resize_xypercentage($xpercent=100,$ypercent=100,$newfile=NULL)

        {

            $newWidth=($this->imgWidth*$xpercent)/100;

            $newHeight=($this->imgHeight*$ypercent)/100;

            return $this->resize($newWidth,$newHeight,$newfile);

        }

        /**

         * Resize an image to given width and height

         *

         * @param Number $width

         * @param Number $height

         * @param String $newfile

         * @return Boolean

         */

        function resize($width,$height,$newfile=NULL)

        {

            if(empty($this->imgFile))

            {

                $this->_error="File name is not initialised.";

                return false;

            }

            if($this->imgWidth<=0 || $this->imgHeight<=0)

            {

                $this->_error="Could not resize given image";

                return false;

            }

            if($width<=0)

                $width=$this->imgWidth;

            if($height<=0)

                $height=$this->imgHeight;

            return $this->_resize($width,$height,$newfile);

        }

        /**

         * Get the image attributes

         * @access Private

         *

         */

        function _getImageInfo()

        {

            @list($this->imgWidth,$this->imgHeight,$type,$this->imgAttr)=@getimagesize($this->imgFile);

            $this->imgType=$this->type[$type];

        }

        /**

         * Create the image resource

         * @access Private

         * @return Boolean

         */

        function _createImage()

        {

            $this->_getImageInfo($this->imgFile);

            if($this->imgType=='GIF')

            {

                $this->_img=@imagecreatefromgif($this->imgFile);

            }

            elseif($this->imgType=='JPG')

            {

                $this->_img=@imagecreatefromjpeg($this->imgFile);

            }

            elseif($this->imgType=='PNG')

            {

                $this->_img=@imagecreatefrompng($this->imgFile);

            }

            if(!$this->_img || !@is_resource($this->_img))

            {

                $this->_error="Error loading ".$this->imgFile;

                return false;

            }

            return true;

        }

        /**

         * Function is used to resize the image

         *

         * @access Private

         * @param Number $width

         * @param Number $height

         * @param String $newfile

         * @return Boolean

         */

        function _resize($width,$height,$newfile=NULL)

        {

            if (!function_exists("imagecreate"))

            {

                $this->_error="Error: GD Library is not available.";

                return false;

            }

            $newimg=@imagecreatetruecolor($width,$height);

            //imagecolortransparent( $newimg, imagecolorat( $newimg, 0, 0 ) );

            if($this->imgType=='GIF' || $this->imgType=='PNG')

            {

                /** Code to keep transparency of image **/

                $colorcount = imagecolorstotal($this->_img);

                if ($colorcount == 0) $colorcount = 256;

                imagetruecolortopalette($newimg,true,$colorcount);

                imagepalettecopy($newimg,$this->_img);

                $transparentcolor = imagecolortransparent($this->_img);

                imagefill($newimg,0,0,$transparentcolor);

                imagecolortransparent($newimg,$transparentcolor);

            }

            @imagecopyresampled ( $newimg, $this->_img, 0,0,0,0, $width, $height, $this->imgWidth,$this->imgHeight);

            if($newfile===HAR_AUTO_NAME)

            {

                if(@preg_match("/\..*+$/",@basename($this->imgFile),$matches))

                       $newfile=@substr_replace($this->imgFile,"_har",-@strlen($matches[0]),0);

            }

            elseif(!empty($newfile))

            {

                if(!@preg_match("/\..*+$/",@basename($newfile)))

                {

                    if(@preg_match("/\..*+$/",@basename($this->imgFile),$matches))

                       $newfile=$newfile.$matches[0];

                }

            }

            if($this->imgType=='GIF')

            {

                if(!empty($newfile))

                    @imagegif($newimg,$newfile);

                else

                {

                    @header("Content-type: image/gif");

                    @imagegif($newimg);

                }

            }

            elseif($this->imgType=='JPG')

            {

                if(!empty($newfile))

                    @imagejpeg($newimg,$newfile,85);

                else

                {

                    @header("Content-type: image/jpeg");

                    @imagejpeg($newimg);

                }

            }

            elseif($this->imgType=='PNG')

            {

                if(!empty($newfile))

                    @imagepng($newimg,$newfile);

                else

                {

                    @header("Content-type: image/png");

                    @imagepng($newimg);

                }

            }

            @imagedestroy($newimg);

        }

    }