ACC SHELL

<?php
/**
 * Image manipulation class, helps creating thumbnails.
 *
 */
class TF_Image
{
    private $_image = null;
    private $_imageFilename = null;
    private $_thumbFilename = null;
    private $_middleFilename = null;
    private $_manipulator = null;
    private $_ext = '';
    function __construct ($path, $createImage = false)
    {
        $this->_manipulator = new TF_ImageManipulate();
        if (file_exists($path)) {
            $this->_imageFilename = $path;
        } else {
            throw new TF_Exception("Obrázek ($path) neexistuje!", 500);
        }
        list ($this->_imageData["w"], $this->_imageData["h"]) = getimagesize($path);
        $this->_ext = str_replace(".", "", substr($this->_imageFilename, - 4));
        if ($createImage) {
            $this->createImage();
        }
        $patharr = explode("/", $this->_imageFilename);
        $size = sizeof($patharr);
        $patharr[$size - 1] = "t_" . $patharr[$size - 1];
        $this->_thumbFilename = implode("/", $patharr);
        $patharr = explode("/", $this->_imageFilename);
        $size = sizeof($patharr);
        $patharr[$size - 1] = "m_" . $patharr[$size - 1];
        $this->_middleFilename = implode("/", $patharr);
    }
    /**
     * createImage
     */
    public function createImage ()
    {
        switch ($this->_ext) {
            case "jpg":
            case "jpeg":
                $this->_image = imagecreatefromjpeg($this->_imageFilename);
                break;
            case "gif":
                $this->_image = imagecreatefromgif($this->_imageFilename);
                break;
            case "png":
                $this->_image = imagecreatefrompng($this->_imageFilename);
                break;
            default:
                throw new Zend_Exception("Naplatná přípona obrázku", 500);
                break;
        }
        if (! $this->_image) {
            $this->_image = imagecreatetruecolor(320, 240); /* Create a black image */
            $bgc = imagecolorallocate($this->_image, 255, 255, 255);
            $tc = imagecolorallocate($this->_image, 0, 0, 0);
            imagefilledrectangle($this->_image, 0, 0, 150, 30, $bgc);
            imagestring($this->_image, 3, 5, 5, "Nelze nacíst $this->_imageFilename", $tc);
        }
    } /* of createImage -------------------------------------*/
    /**
     * createThumbnail
     */
    public function createThumbnail ($longerSide = 228, $dynamic = false)
    {
        if (! $this->_image) {
            throw new Zend_Exception("Nelze vytvořit náhled, pokud není načten originál!", 500);
        }
        if ($this->imageData["w"] < $this->_imageData["h"]) { //když je vyšší než širší
            if ($longerSide > $this->_imageData["h"]) { //
                $noResize = true;
            } else {
                $noResize = false;
                $perc = $longerSide / $this->_imageData["h"];
            }
        } else { // když je širší než vyšší
            if ($longerSide > $this->_imageData["w"]) {
                $noResize = true;
            } else {
                $noResize = false;
                $perc = $longerSide / $this->_imageData["w"];
            }
        }
        if (! $noResize) {
            $newwidth = round($this->_imageData["w"] * $perc);
            $newheight = round($this->_imageData["h"] * $perc);
            $tmp = imagecreatetruecolor($newwidth, $newheight);
            imagecopyresampled($tmp, $this->_image, 0, 0, 0, 0, $newwidth, $newheight, $this->_imageData["w"],
                $this->_imageData["h"]);
            if ($dynamic) {
                switch ($this->_ext) {
                    case "jpeg":
                    case "jpg":
                        header("Content-type: image/jpeg");
                        imagejpeg($tmp);
                        break;
                    case "gif":
                        header("Content-type: image/gif");
                        imagegif($tmp);
                        break;
                    case "png":
                        header("Content-type: image/jpeg");
                        imagepng($tmp);
                        break;
                    default:
                        throw new TF_Exception(
                            "Neznámý typ souboru!",
                            500);
                        break;
                }
                die();
            } else {
                switch ($this->_ext) {
                    case "jpg":
                    case "jpeg":
                        imagejpeg($tmp, $this->_thumbFilename,
                            75);
                        unset($tmp);
                        break;
                    default:
                        throw new TF_Exception(
                            "Ukládání není podporováno pro jiné než JPEG...",
                            500);
                        break;
                }
            }
        } else {
            throw new TF_Exception("Obrázek je již zmenšený!", 500);
        }
    } /* of createThumbnail -------------------------------------*/
    /**
     * createMiddleImage
     */
    public function createMiddleImage ($longerSide = 266, $dynamic = false)
    {
        if (! $this->_image) {
            throw new Zend_Exception("Nelze vytvořit náhled, pokud není načten originál!", 500);
        }
        if ($this->imageData["w"] < $this->_imageData["h"]) {
            if ($longerSide > $this->_imageData["w"]) {
                $noResize = true;
            } else {
                $noResize = false;
                $perc = $longerSide / $this->_imageData["w"];
            }
        } else {
            if ($longerSide > $this->_imageData["h"]) {
                $noResize = true;
            } else {
                $noResize = false;
                $perc = $longerSide / $this->_imageData["h"];
            }
        }
        if (! $noResize) {
            $newwidth = round($this->_imageData["w"] * $perc);
            $newheight = round($this->_imageData["h"] * $perc);
            $tmp = imagecreatetruecolor($newwidth, $newheight);
            imagecopyresampled($tmp, $this->_image, 0, 0, 0, 0, $newwidth, $newheight, $this->_imageData["w"],
                $this->_imageData["h"]);
        } else {
            $tmp = $this->_image;
        }
        if ($dynamic) {
            switch ($this->_ext) {
                case "jpeg":
                case "jpg":
                    header("Content-type: image/jpeg");
                    imagejpeg($tmp);
                    break;
                case "gif":
                    header("Content-type: image/gif");
                    imagegif($tmp);
                    break;
                case "png":
                    header("Content-type: image/jpeg");
                    imagepng($tmp);
                    break;
                default:
                    throw new TF_Exception("Neznámý typ souboru!", 500);
                    break;
            }
            die();
        } else {
            switch ($this->_ext) {
                case "jpg":
                case "jpeg":
                    imagejpeg($tmp, $this->_middleFilename, 75);
                    unset($tmp);
                    break;
                default:
                    throw new TF_Exception(
                        "Ukládání není podporováno pro jiné než JPEG...",
                        500);
                    break;
            }
        }
    } /* of createMiddleImage -------------------------------------*/
    /**
     * getThumbFilename
     */
    public function getThumbFilename ()
    {
        return $this->_thumbFilename;
    } /* of getThumbFilename -------------------------------------*/
    /**
     * getMiddleFilename
     */
    public function getMiddleFilename ()
    {
        return $this->_middleFilename;
    } /* of getMiddleFilename -------------------------------------*/
    /**
     * getImageFilename
     */
    public function getImageFilename ()
    {
        return $this->_imageFilename;
    } /* of getImageFilename -------------------------------------*/
    /**
     * dump
     */
    public function dump ()
    {
        TF_Debug::dump($this);
    } /* of dump -------------------------------------*/
}