File Source for class.image.php

<?php
/**
* @package linea21.core
* @subpackage system
* @author linea21 <info@linea21.com>
* @version $id SVN
* @access public
* @license http://opensource.org/licenses/gpl-3.0.html
* Manipulate images
*/
class image {
/* @parameters
* */
var $IMG_SRC; // chemin relatif de l'image
var $IMG_DEST; // chemin de destination de l'image
var $RATIO; // ratio de reduction
/**
* image::IsResizableimage()
* Determine si un fichier est une image redimmensionnable
*
* @access public
* @param string $img_src
* @return boolean
*/
function IsResizableimage($img_src)
{
include('../languages/' . U_L . '/lang_system.'. CHARSET .'.php');
$ext_list = array ('jpg', 'jpeg', 'png');
$this->IMG_SRC = $img_src;
$ext = explode('.', $this->IMG_SRC);
$ext = $ext[count($ext)-1];
while (list (, $val) = each ($ext_list)) {
if ($ext == $val) return true;
}
return $lang['upload']['no_resize'];
}
/**
* image::_GetFormat()
* Determine le format d'un image
*
* @access private
* @return string 'L' || 'P'
*/
function _GetFormat()
{
list($width, $height, $type, $attr) = getimagesize($this->IMG_SRC);
if ($width > $height) {
return 'L';
} else {
return 'P';
}
}
/**
* image::ThumbCreate()
* création d'une image miniature
*
* @access public
* @param string $image_src : Nom et chemin de l'image originale
* @param string $image_dest : Nom de l'image de destination
* @param integer $ratio : Largeur de l'image réduite
* @return boolean
*/
function ThumbCreate($image_src, $image_dest , $ratio = -1)
{
$this->IMG_SRC = $image_src;
$this->IMG_DEST = $image_dest;
if ($ratio != -1) $this->RATIO = $ratio;
$IsResizable = $this->IsResizableimage($this->IMG_SRC);
if (is_string($IsResizable)) return $IsResizable;
$format = $this->_GetFormat();
list($width, $height, $type, $attr) = getimagesize($image_src);
if ($type == 1) $src = imagecreatefromgif($image_src);
if ($type == 2) $src = imagecreatefromjpeg($image_src);
if ($type == 3) $src = imagecreatefrompng($image_src);
// echo $this->IMG_SRC . "<br />";
// echo $this->IMG_DEST . "<br />";
// echo $this->RATIO . "<br />";
// echo $format . "<br />";
if ($format == 'L') {
$im = imagecreatetruecolor($this->RATIO, floor(($this->RATIO * $height) / $width));
imagecopyresampled($im, $src, 0, 0, 0, 0, $this->RATIO, floor($this->RATIO * $height / $width), $width, $height);
} elseif ($format == 'P') {
$im = imagecreatetruecolor(floor(($this->RATIO * $width) / $height), $this->RATIO);
imagecopyresampled($im, $src, 0, 0, 0, 0, floor($this->RATIO * $width / $height), $this->RATIO, $width, $height);
}
if ($type == 1) $result = imagegif($im, $this->IMG_DEST);
if ($type == 2) $result = imagejpeg($im, $this->IMG_DEST);
if ($type == 3) $result = imagepng($im, $this->IMG_DEST);
return $result;
}
}
?>

Source for file class.image.php