<?php
class Image {
    private $bos;
    public $name;
    public $type;
    public $size;
    public $width = 0;
    public $height = 0;
    public $image;
    public $image_type;
    public $file;
    
    function __construct($id = false) {
        global $Dippler;
        $this->bos =& $Dippler->backoffice;
        if (is_numeric($id)) {
			$this->id = $id;
			$data = $this->bos->loadImage($this->idXML());
			if ($data) {
                $this->load($data);
            }
        }
    }
    
    function view($thumb = false) {
        $add = "";
        if ($thumb) $add = "&thumb=1";
        return WWW_ROOT . "images/image.php?id=".$this->id.$add;
    }
    
    function load($data) {
        $this->name = $data->name[0][0];
        $this->type = $data->filetype[0][0];
        $this->size = $data->filesize[0][0];
        if (isset($data->image[0][0])) $this->image = base64_decode($data->image[0][0]);
    }
    
    function resizeToHeight($height) {
        $ratio = $height / $this->height;
        $width = $this->width * $ratio;
        return $this->resize($width,$height);
    }
       
    function resizeToWidth($width) {
        $ratio = $width / $this->width;
        $height = $this->height * $ratio;
        return $this->resize($width,$height);
    }
    
    function resize($width,$height) {
        $new_image = imagecreatetruecolor($width, $height);
        if ($this->image_type == IMAGETYPE_GIF) {
            $new_image = imagecreate($width, $height);
        }
        if (($this->image_type == IMAGETYPE_GIF) OR ($this->image_type==IMAGETYPE_PNG)){
            imagealphablending($new_image, false);
            imagesavealpha($new_image, true);
            $transparent = imagecolorallocatealpha($new_image, 255, 255, 255, 127);
            imagefilledrectangle($new_image, 0, 0, $width, $height, $transparent);
        }
        imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->width, $this->height);
        ob_start();
        if ($this->type == "image/jpeg" || $this->type == "image/pjpeg") {
            imagejpeg($new_image, NULL, 85);
        } else if ($this->type == "image/gif") {
			imagegif($new_image);
        } else if ($this->type == "image/png") {
            imagepng($new_image);
        }
        $contents =  ob_get_contents();
        ob_end_clean();
        imagedestroy($new_image);
        return $contents;
    }
    
    function upload($file) {
        $allowed_types = array("image/gif", "image/jpeg", "image/pjpeg", "image/png");    
        if (in_array($file["type"], $allowed_types) && $file["size"] < 25000000) {   
            if ($file["error"] > 0) {
                return false;
            } else {
                $this->file = $file["tmp_name"];
                $this->name = strtolower($file["name"]);
                $this->type = $file["type"];
                $this->size = $file["size"];
                $this->image = file_get_contents($file['tmp_name']);
                $image_info = getimagesize($file["tmp_name"]);
                $this->image_type = $image_info[2];
                if( $this->image_type == IMAGETYPE_JPEG ) {
                    $this->image = imagecreatefromjpeg($file["tmp_name"]);
                } elseif( $this->image_type == IMAGETYPE_GIF ) {
                    $this->image = imagecreatefromgif($file["tmp_name"]);
                } elseif( $this->image_type == IMAGETYPE_PNG ) {
                    $this->image = imagecreatefrompng($file["tmp_name"]);
                }
                $this->width = imagesx($this->image);
                $this->height = imagesy($this->image);
                if ($this->width > 300 && $this->width >= $this->height) {
                    $this->image = $this->resizeToWidth(300);
                } else if ($this->height > 200 && $this->height > $this->width) {
                    $this->image = $this->resizeToHeight(200);
				} else {
                    ob_start();
			        if ($this->type == "image/jpeg" || $this->type == "image/pjpeg") {
                        imagejpeg($this->image, NULL, 85);
                    } else if ($this->type == "image/gif") {
                        imagegif($this->image);
                    } else if ($this->type == "image/png") {
                        imagepng($this->image);
                    }
                    $this->image =  ob_get_contents();
                    ob_end_clean();
				}
                return true;
            }
        }
        return false;
    }
    
    function idXML() {
        $data = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>";
        $data .= "<image>";
        $data .= "<id>".$this->id."</id>";
		$data .= "</image>";
		return $data;
    }
       
}
?>