ACC SHELL

<?php
/**
 * Image manipulation class, helps creating thumbnails.
 *
 */
class TF_ImageManipulate
{
    private static $_allowedTypes = array('jpg' , 'jpeg' , 'gif' , 'png');
    /**
     * __contruct
     */
    private function __contruct ()
    {} /* of __contruct -------------------------------------*/
    /**
     * getImageDimensions
     */
    public static function getImageDimensions ($path)
    {
        $data = getimagesize($path);
        if (! $data) {
            throw new TF_Exception('Nelze načíst informace o obrázku.', 404);
        }
        $res['width'] = $data[0];
        $res['height'] = $data[1];
        $res['imagetype'] = $data[2];
        $res['html_dimensions'] = $data[3];
        $res['mime'] = $data['mime'];
        return $res;
    } /* of getImageDimensions -------------------------------------*/
    /**
     * createImage
     */
    public static function createImageFromFile ($path)
    {
        $ext = pathinfo($path, PATHINFO_EXTENSION);
        switch ($ext) {
            case "jpg":
            case "jpeg":
                $img = imagecreatefromjpeg($path);
                break;
            case "gif":
                $img = imagecreatefromgif($path);
                break;
            case "png":
                $img = imagecreatefrompng($path);
                break;
            default:
                throw new Zend_Exception("Naplatná přípona obrázku", 500);
                break;
        }
        if (! $img) {
            $img = 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, 320, 240, $bgc);
            imagestring($this->_image, 3, 5, 5, "Nelze nacíst soubor $path", $tc);
        }
        return $img;
    } /* of createImage -------------------------------------*/
    /**
     * createThumbnail
     */
    public function resample ($imagePath, $longerSide, $dontResizeSmaller = true, $saveSmaller = true)
    {
        $image = self::createImageFromFile($imagePath);
        $data = self::getImageDimensions();
        if (! $image) {
            throw new Zend_Exception("Obrázek je pravděpodobně poškozen.", 500);
        }
        if ($data["width"] < $data['height']) { //když je vyšší než širší
            if ($longerSide > $data['height']) { //
                $noResize = true;
                $perc = $longerSide / $data['height'];
            } else {
                $noResize = false;
                $perc = $longerSide / $data['height'];
            }
        } else { // když je širší než vyšší
            if ($longerSide > $data['width']) {
                $noResize = true;
                $perc = $longerSide / $data['width'];
            } else {
                $noResize = false;
                $perc = $longerSide / $data['width'];
            }
        }

        if ((! $noResize) || (! $dontResizeSmaller)) {
            $newwidth = round($data['width'] * $perc);
            $newheight = round($data['height'] * $perc);
            $tmp = imagecreatetruecolor($newwidth, $newheight);
            imagecopyresampled($tmp, $this->_image, 0, 0, 0, 0, $newwidth, $newheight, $data['width'],
                $data['height']);
            return $tmp;
        } else if(1){ //FIXME Dodělat !

        }
        return false;
    } /* of createThumbnail -------------------------------------*/
    /**
     * outImage
     */
    public static function outImage ($image, $path = null)
    {
        if ($dynamic) {
            switch ($ext) {
                case "jpeg":
                case "jpg":
                    header("Content-type: image/jpeg");
                    imagejpeg($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 ($ext) {
                case "jpg":
                case "jpeg":
                    imagejpeg($tmp, $this->_thumbFilename, 75);
                    unset($tmp);
                    break;
                default:
                    throw new TF_Exception(
                        "Ukládání není podporováno pro jiné než JPEG...",
                        500);
                    break;
            }
        }
    } /* of outImage -------------------------------------*/
    /**
     * 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"] < $data['height']) {
            if ($longerSide > $data['width']) {
                $noResize = true;
            } else {
                $noResize = false;
                $perc = $longerSide / $data['width'];
            }
        } else {
            if ($longerSide > $data['height']) {
                $noResize = true;
            } else {
                $noResize = false;
                $perc = $longerSide / $data['height'];
            }
        }
        if (! $noResize) {
            $newwidth = round($data['width'] * $perc);
            $newheight = round($data['height'] * $perc);
            $tmp = imagecreatetruecolor($newwidth, $newheight);
            imagecopyresampled($tmp, $this->_image, 0, 0, 0, 0, $newwidth, $newheight, $data['width'],
                $data['height']);
        } else {
            $tmp = $this->_image;
        }
        if ($dynamic) {
            switch ($ext) {
                case "jpeg":
                case "jpg":
                    header("Content-type: image/jpeg");
                    imagejpeg($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 ($ext) {
                case "jpg":
                case "jpeg":
                    imagejpeg($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 -------------------------------------*/
}