mirror of
https://github.com/Dolibarr/dolibarr.git
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598 lines
19 KiB
PHP
598 lines
19 KiB
PHP
<?php
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/* Copyright (C) 2004-2010 Laurent Destailleur <eldy@users.sourceforge.net>
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* Copyright (C) 2005-2007 Regis Houssin <regis.houssin@inodbox.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* or see http://www.gnu.org/
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*/
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/**
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* \file htdocs/core/lib/images.lib.php
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* \brief Set of function for manipulating images
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*/
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// Define size of logo small and mini
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$maxwidthsmall=270;$maxheightsmall=150;
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$maxwidthmini=128;$maxheightmini=72;
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$quality = 80;
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/**
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* Return if a filename is file name of a supported image format
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*
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* @param string $file Filename
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* @return int -1=Not image filename, 0=Image filename but format not supported by PHP, 1=Image filename with format supported
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*/
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function image_format_supported($file)
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{
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$regeximgext='\.gif|\.jpg|\.jpeg|\.png|\.bmp|\.xpm|\.xbm|\.svg'; // See also into product.class.php
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// Case filename is not a format image
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if (! preg_match('/('.$regeximgext.')$/i',$file,$reg)) return -1;
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// Case filename is a format image but not supported by this PHP
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$imgfonction='';
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if (strtolower($reg[1]) == '.gif') $imgfonction = 'imagecreatefromgif';
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if (strtolower($reg[1]) == '.png') $imgfonction = 'imagecreatefrompng';
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if (strtolower($reg[1]) == '.jpg') $imgfonction = 'imagecreatefromjpeg';
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if (strtolower($reg[1]) == '.jpeg') $imgfonction = 'imagecreatefromjpeg';
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if (strtolower($reg[1]) == '.bmp') $imgfonction = 'imagecreatefromwbmp';
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if (strtolower($reg[1]) == '.xpm') $imgfonction = 'imagecreatefromxpm';
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if (strtolower($reg[1]) == '.xbm') $imgfonction = 'imagecreatefromxbm';
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if ($imgfonction)
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{
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if (! function_exists($imgfonction))
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{
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// Fonctions de conversion non presente dans ce PHP
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return 0;
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}
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}
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// Filename is a format image and supported by this PHP
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return 1;
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}
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/**
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* Return size of image file on disk (Supported extensions are gif, jpg, png and bmp)
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*
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* @param string $file Full path name of file
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* @param bool $url Image with url (true or false)
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* @return array array('width'=>width, 'height'=>height)
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*/
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function dol_getImageSize($file, $url = false)
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{
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$ret=array();
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if (image_format_supported($file) < 0) return $ret;
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$filetoread = $file;
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if (!$url)
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{
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$filetoread = realpath(dol_osencode($file)); // Chemin canonique absolu de l'image
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}
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if ($filetoread)
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{
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$infoImg = getimagesize($filetoread); // Recuperation des infos de l'image
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$ret['width']=$infoImg[0]; // Largeur de l'image
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$ret['height']=$infoImg[1]; // Hauteur de l'image
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}
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return $ret;
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}
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/**
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* Resize or crop an image file (Supported extensions are gif, jpg, png and bmp)
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*
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* @param string $file Path of file to resize/crop
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* @param int $mode 0=Resize, 1=Crop
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* @param int $newWidth Largeur maximum que dois faire l'image destination (0=keep ratio)
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* @param int $newHeight Hauteur maximum que dois faire l'image destination (0=keep ratio)
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* @param int $src_x Position of croping image in source image (not use if mode=0)
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* @param int $src_y Position of croping image in source image (not use if mode=0)
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* @return int File name if OK, error message if KO
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*/
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function dol_imageResizeOrCrop($file, $mode, $newWidth, $newHeight, $src_x=0, $src_y=0)
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{
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require_once DOL_DOCUMENT_ROOT.'/core/lib/functions2.lib.php';
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global $conf,$langs;
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dol_syslog("dol_imageResizeOrCrop file=".$file." mode=".$mode." newWidth=".$newWidth." newHeight=".$newHeight." src_x=".$src_x." src_y=".$src_y);
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// Clean parameters
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$file=trim($file);
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// Check parameters
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if (! $file)
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{
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// Si le fichier n'a pas ete indique
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return 'Bad parameter file';
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}
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elseif (! file_exists($file))
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{
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// Si le fichier passe en parametre n'existe pas
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return $langs->trans("ErrorFileNotFound",$file);
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}
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elseif(image_format_supported($file) < 0)
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{
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return 'This filename '.$file.' does not seem to be an image filename.';
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}
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elseif(!is_numeric($newWidth) && !is_numeric($newHeight))
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{
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return 'Wrong value for parameter newWidth or newHeight';
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}
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elseif ($mode == 0 && $newWidth <= 0 && $newHeight <= 0)
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{
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return 'At least newHeight or newWidth must be defined for resizing';
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}
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elseif ($mode == 1 && ($newWidth <= 0 || $newHeight <= 0))
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{
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return 'Both newHeight or newWidth must be defined for croping';
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}
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$filetoread = realpath(dol_osencode($file)); // Chemin canonique absolu de l'image
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$infoImg = getimagesize($filetoread); // Recuperation des infos de l'image
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$imgWidth = $infoImg[0]; // Largeur de l'image
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$imgHeight = $infoImg[1]; // Hauteur de l'image
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if ($mode == 0) // If resize, we check parameters
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{
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if ($newWidth <= 0)
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{
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$newWidth=intval(($newHeight / $imgHeight) * $imgWidth); // Keep ratio
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}
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if ($newHeight <= 0)
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{
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$newHeight=intval(($newWidth / $imgWidth) * $imgHeight); // Keep ratio
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}
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}
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$imgfonction='';
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switch($infoImg[2])
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{
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case 1: // IMG_GIF
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$imgfonction = 'imagecreatefromgif';
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break;
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case 2: // IMG_JPG
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$imgfonction = 'imagecreatefromjpeg';
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break;
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case 3: // IMG_PNG
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$imgfonction = 'imagecreatefrompng';
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break;
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case 4: // IMG_WBMP
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$imgfonction = 'imagecreatefromwbmp';
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break;
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}
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if ($imgfonction)
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{
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if (! function_exists($imgfonction))
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{
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// Fonctions de conversion non presente dans ce PHP
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return 'Resize not possible. This PHP does not support GD functions '.$imgfonction;
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}
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}
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// Initialisation des variables selon l'extension de l'image
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switch($infoImg[2])
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{
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case 1: // Gif
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$img = imagecreatefromgif($filetoread);
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$extImg = '.gif'; // File name extension of image
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$newquality='NU'; // Quality is not used for this format
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break;
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case 2: // Jpg
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$img = imagecreatefromjpeg($filetoread);
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$extImg = '.jpg';
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$newquality=100; // % quality maximum
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break;
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case 3: // Png
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$img = imagecreatefrompng($filetoread);
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$extImg = '.png';
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$newquality=0; // No compression (0-9)
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break;
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case 4: // Bmp
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$img = imagecreatefromwbmp($filetoread);
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$extImg = '.bmp';
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$newquality='NU'; // Quality is not used for this format
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break;
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}
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// Create empty image
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if ($infoImg[2] == 1)
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{
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// Compatibilite image GIF
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$imgThumb = imagecreate($newWidth, $newHeight);
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}
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else
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{
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$imgThumb = imagecreatetruecolor($newWidth, $newHeight);
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}
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// Activate antialiasing for better quality
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if (function_exists('imageantialias'))
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{
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imageantialias($imgThumb, true);
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}
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// This is to keep transparent alpha channel if exists (PHP >= 4.2)
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if (function_exists('imagesavealpha'))
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{
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imagesavealpha($imgThumb, true);
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}
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// Initialisation des variables selon l'extension de l'image
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switch($infoImg[2])
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{
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case 1: // Gif
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$trans_colour = imagecolorallocate($imgThumb, 255, 255, 255); // On procede autrement pour le format GIF
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imagecolortransparent($imgThumb,$trans_colour);
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break;
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case 2: // Jpg
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$trans_colour = imagecolorallocatealpha($imgThumb, 255, 255, 255, 0);
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break;
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case 3: // Png
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imagealphablending($imgThumb,false); // Pour compatibilite sur certain systeme
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$trans_colour = imagecolorallocatealpha($imgThumb, 255, 255, 255, 127); // Keep transparent channel
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break;
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case 4: // Bmp
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$trans_colour = imagecolorallocatealpha($imgThumb, 255, 255, 255, 0);
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break;
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}
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if (function_exists("imagefill")) imagefill($imgThumb, 0, 0, $trans_colour);
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dol_syslog("dol_imageResizeOrCrop: convert image from ($imgWidth x $imgHeight) at position ($src_x x $src_y) to ($newWidth x $newHeight) as $extImg, newquality=$newquality");
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//imagecopyresized($imgThumb, $img, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $imgWidth, $imgHeight); // Insere l'image de base redimensionnee
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imagecopyresampled($imgThumb, $img, 0, 0, $src_x, $src_y, $newWidth, $newHeight, ($mode==0?$imgWidth:$newWidth), ($mode==0?$imgHeight:$newHeight)); // Insere l'image de base redimensionnee
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$imgThumbName = $file;
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// Check if permission are ok
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//$fp = fopen($imgThumbName, "w");
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//fclose($fp);
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// Create image on disk
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switch($infoImg[2])
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{
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case 1: // Gif
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imagegif($imgThumb, $imgThumbName);
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break;
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case 2: // Jpg
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imagejpeg($imgThumb, $imgThumbName, $newquality);
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break;
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case 3: // Png
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imagepng($imgThumb, $imgThumbName, $newquality);
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break;
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case 4: // Bmp
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image2wbmp($imgThumb, $imgThumbName);
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break;
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}
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// Set permissions on file
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if (! empty($conf->global->MAIN_UMASK)) @chmod($imgThumbName, octdec($conf->global->MAIN_UMASK));
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// Free memory. This does not delete image.
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imagedestroy($img);
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imagedestroy($imgThumb);
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clearstatcache(); // File was replaced by a modified one, so we clear file caches.
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return $imgThumbName;
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}
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/**
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* dolRotateImage if image is a jpg file.
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* Currently use an autodetection to know if we can rotate.
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* TODO Introduce a new parameter to force rotate.
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*
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* @param string $file_path Full path to image to rotate
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* @return boolean Success or not
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*/
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function dolRotateImage($file_path)
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{
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$exif = @exif_read_data($file_path);
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if ($exif === false) {
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return false;
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}
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$orientation = intval(@$exif['Orientation']);
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if (!in_array($orientation, array(3, 6, 8))) {
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return false;
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}
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$image = @imagecreatefromjpeg($file_path);
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switch ($orientation) {
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case 3:
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$image = @imagerotate($image, 180, 0);
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break;
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case 6:
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$image = @imagerotate($image, 270, 0);
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break;
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case 8:
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$image = @imagerotate($image, 90, 0);
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break;
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default:
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return false;
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}
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$success = imagejpeg($image, $file_path);
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// Free up memory (imagedestroy does not delete files):
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@imagedestroy($image);
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return $success;
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}
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/**
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* Create a thumbnail from an image file (Supported extensions are gif, jpg, png and bmp).
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* If file is myfile.jpg, new file may be myfile_small.jpg
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*
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* @param string $file Path of source file to resize
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* @param int $maxWidth Largeur maximum que dois faire la miniature (-1=unchanged, 160 by default)
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* @param int $maxHeight Hauteur maximum que dois faire l'image (-1=unchanged, 120 by default)
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* @param string $extName Extension to differenciate thumb file name ('_small', '_mini')
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* @param int $quality Quality of compression (0=worst, 100=best)
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* @param string $outdir Directory where to store thumb
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* @param int $targetformat New format of target (IMAGETYPE_GIF, IMAGETYPE_JPG, IMAGETYPE_PNG, IMAGETYPE_BMP, IMAGETYPE_WBMP ... or 0 to keep old format)
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* @return string Full path of thumb or '' if it fails or 'Error...' if it fails
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*/
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function vignette($file, $maxWidth = 160, $maxHeight = 120, $extName='_small', $quality=50, $outdir='thumbs', $targetformat=0)
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{
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require_once DOL_DOCUMENT_ROOT.'/core/lib/functions2.lib.php';
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global $conf,$langs;
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dol_syslog("vignette file=".$file." extName=".$extName." maxWidth=".$maxWidth." maxHeight=".$maxHeight." quality=".$quality." outdir=".$outdir." targetformat=".$targetformat);
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// Clean parameters
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$file=trim($file);
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// Check parameters
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if (! $file)
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{
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// Si le fichier n'a pas ete indique
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return 'ErrorBadParameters';
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}
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elseif (! file_exists($file))
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{
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// Si le fichier passe en parametre n'existe pas
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dol_syslog($langs->trans("ErrorFileNotFound",$file),LOG_ERR);
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return $langs->trans("ErrorFileNotFound",$file);
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}
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elseif(image_format_supported($file) < 0)
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{
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dol_syslog('This file '.$file.' does not seem to be an image format file name.',LOG_WARNING);
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return 'ErrorBadImageFormat';
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}
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elseif(!is_numeric($maxWidth) || empty($maxWidth) || $maxWidth < -1){
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// Si la largeur max est incorrecte (n'est pas numerique, est vide, ou est inferieure a 0)
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dol_syslog('Wrong value for parameter maxWidth',LOG_ERR);
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return 'Error: Wrong value for parameter maxWidth';
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}
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elseif(!is_numeric($maxHeight) || empty($maxHeight) || $maxHeight < -1){
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// Si la hauteur max est incorrecte (n'est pas numerique, est vide, ou est inferieure a 0)
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dol_syslog('Wrong value for parameter maxHeight',LOG_ERR);
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return 'Error: Wrong value for parameter maxHeight';
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}
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$filetoread = realpath(dol_osencode($file)); // Chemin canonique absolu de l'image
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$infoImg = getimagesize($filetoread); // Recuperation des infos de l'image
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$imgWidth = $infoImg[0]; // Largeur de l'image
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$imgHeight = $infoImg[1]; // Hauteur de l'image
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if ($maxWidth == -1) $maxWidth=$infoImg[0]; // If size is -1, we keep unchanged
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if ($maxHeight == -1) $maxHeight=$infoImg[1]; // If size is -1, we keep unchanged
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// Si l'image est plus petite que la largeur et la hauteur max, on ne cree pas de vignette
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if ($infoImg[0] < $maxWidth && $infoImg[1] < $maxHeight)
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{
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// On cree toujours les vignettes
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dol_syslog("File size is smaller than thumb size",LOG_DEBUG);
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//return 'Le fichier '.$file.' ne necessite pas de creation de vignette';
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}
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$imgfonction='';
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switch($infoImg[2])
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{
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case IMAGETYPE_GIF: // 1
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$imgfonction = 'imagecreatefromgif';
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break;
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case IMAGETYPE_JPEG: // 2
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$imgfonction = 'imagecreatefromjpeg';
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break;
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case IMAGETYPE_PNG: // 3
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$imgfonction = 'imagecreatefrompng';
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break;
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case IMAGETYPE_BMP: // 6
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// Not supported by PHP GD
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break;
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case IMAGETYPE_WBMP: // 15
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$imgfonction = 'imagecreatefromwbmp';
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break;
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}
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if ($imgfonction)
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{
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if (! function_exists($imgfonction))
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{
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// Fonctions de conversion non presente dans ce PHP
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return 'Error: Creation of thumbs not possible. This PHP does not support GD function '.$imgfonction;
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}
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}
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// On cree le repertoire contenant les vignettes
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$dirthumb = dirname($file).($outdir?'/'.$outdir:''); // Chemin du dossier contenant les vignettes
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dol_mkdir($dirthumb);
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// Initialisation des variables selon l'extension de l'image
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$img=null;
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switch($infoImg[2])
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{
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case IMAGETYPE_GIF: // 1
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$img = imagecreatefromgif($filetoread);
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$extImg = '.gif'; // Extension de l'image
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break;
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case IMAGETYPE_JPEG: // 2
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$img = imagecreatefromjpeg($filetoread);
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$extImg = (preg_match('/\.jpeg$/',$file)?'.jpeg':'.jpg'); // Extension de l'image
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break;
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case IMAGETYPE_PNG: // 3
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$img = imagecreatefrompng($filetoread);
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$extImg = '.png';
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break;
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case IMAGETYPE_BMP: // 6
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// Not supported by PHP GD
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$extImg = '.bmp';
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break;
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case IMAGETYPE_WBMP: // 15
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$img = imagecreatefromwbmp($filetoread);
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$extImg = '.bmp';
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break;
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}
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if (! is_resource($img))
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{
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dol_syslog('Failed to detect type of image. We found infoImg[2]='.$infoImg[2], LOG_WARNING);
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return 0;
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}
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// Initialisation des dimensions de la vignette si elles sont superieures a l'original
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if($maxWidth > $imgWidth){ $maxWidth = $imgWidth; }
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if($maxHeight > $imgHeight){ $maxHeight = $imgHeight; }
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$whFact = $maxWidth/$maxHeight; // Facteur largeur/hauteur des dimensions max de la vignette
|
|
$imgWhFact = $imgWidth/$imgHeight; // Facteur largeur/hauteur de l'original
|
|
|
|
// Fixe les dimensions de la vignette
|
|
if($whFact < $imgWhFact)
|
|
{
|
|
// Si largeur determinante
|
|
$thumbWidth = $maxWidth;
|
|
$thumbHeight = $thumbWidth / $imgWhFact;
|
|
}
|
|
else
|
|
{
|
|
// Si hauteur determinante
|
|
$thumbHeight = $maxHeight;
|
|
$thumbWidth = $thumbHeight * $imgWhFact;
|
|
}
|
|
$thumbHeight=round($thumbHeight);
|
|
$thumbWidth=round($thumbWidth);
|
|
|
|
// Define target format
|
|
if (empty($targetformat)) $targetformat=$infoImg[2];
|
|
|
|
// Create empty image
|
|
if ($targetformat == IMAGETYPE_GIF)
|
|
{
|
|
// Compatibilite image GIF
|
|
$imgThumb = imagecreate($thumbWidth, $thumbHeight);
|
|
}
|
|
else
|
|
{
|
|
$imgThumb = imagecreatetruecolor($thumbWidth, $thumbHeight);
|
|
}
|
|
|
|
// Activate antialiasing for better quality
|
|
if (function_exists('imageantialias'))
|
|
{
|
|
imageantialias($imgThumb, true);
|
|
}
|
|
|
|
// This is to keep transparent alpha channel if exists (PHP >= 4.2)
|
|
if (function_exists('imagesavealpha'))
|
|
{
|
|
imagesavealpha($imgThumb, true);
|
|
}
|
|
|
|
// Initialisation des variables selon l'extension de l'image
|
|
// $targetformat is 0 by default, in such case, we keep original extension
|
|
switch($targetformat)
|
|
{
|
|
case IMAGETYPE_GIF: // 1
|
|
$trans_colour = imagecolorallocate($imgThumb, 255, 255, 255); // On procede autrement pour le format GIF
|
|
imagecolortransparent($imgThumb,$trans_colour);
|
|
$extImgTarget = '.gif';
|
|
$newquality='NU';
|
|
break;
|
|
case IMAGETYPE_JPEG: // 2
|
|
$trans_colour = imagecolorallocatealpha($imgThumb, 255, 255, 255, 0);
|
|
$extImgTarget = (preg_match('/\.jpeg$/i',$file)?'.jpeg':'.jpg');
|
|
$newquality=$quality;
|
|
break;
|
|
case IMAGETYPE_PNG: // 3
|
|
imagealphablending($imgThumb,false); // Pour compatibilite sur certain systeme
|
|
$trans_colour = imagecolorallocatealpha($imgThumb, 255, 255, 255, 127); // Keep transparent channel
|
|
$extImgTarget = '.png';
|
|
$newquality=$quality-100;
|
|
$newquality=round(abs($quality-100)*9/100);
|
|
break;
|
|
case IMAGETYPE_BMP: // 6
|
|
// Not supported by PHP GD
|
|
$extImgTarget = '.bmp';
|
|
$newquality='NU';
|
|
break;
|
|
case IMAGETYPE_WBMP: // 15
|
|
$trans_colour = imagecolorallocatealpha($imgThumb, 255, 255, 255, 0);
|
|
$extImgTarget = '.bmp';
|
|
$newquality='NU';
|
|
break;
|
|
}
|
|
if (function_exists("imagefill")) imagefill($imgThumb, 0, 0, $trans_colour);
|
|
|
|
dol_syslog("vignette: convert image from ($imgWidth x $imgHeight) to ($thumbWidth x $thumbHeight) as $extImg, newquality=$newquality");
|
|
//imagecopyresized($imgThumb, $img, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $imgWidth, $imgHeight); // Insere l'image de base redimensionnee
|
|
imagecopyresampled($imgThumb, $img, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $imgWidth, $imgHeight); // Insere l'image de base redimensionnee
|
|
|
|
$fileName = preg_replace('/(\.gif|\.jpeg|\.jpg|\.png|\.bmp)$/i','',$file); // On enleve extension quelquesoit la casse
|
|
$fileName = basename($fileName);
|
|
//$imgThumbName = $dirthumb.'/'.getImageFileNameForSize(basename($file), $extName, $extImgTarget); // Full path of thumb file
|
|
$imgThumbName = getImageFileNameForSize($file, $extName, $extImgTarget); // Full path of thumb file
|
|
|
|
|
|
// Check if permission are ok
|
|
//$fp = fopen($imgThumbName, "w");
|
|
//fclose($fp);
|
|
|
|
// Create image on disk
|
|
switch($targetformat)
|
|
{
|
|
case IMAGETYPE_GIF: // 1
|
|
imagegif($imgThumb, $imgThumbName);
|
|
break;
|
|
case IMAGETYPE_JPEG: // 2
|
|
imagejpeg($imgThumb, $imgThumbName, $newquality);
|
|
break;
|
|
case IMAGETYPE_PNG: // 3
|
|
imagepng($imgThumb, $imgThumbName, $newquality);
|
|
break;
|
|
case IMAGETYPE_BMP: // 6
|
|
// Not supported by PHP GD
|
|
break;
|
|
case IMAGETYPE_WBMP: // 15
|
|
image2wbmp($imgThumb, $imgThumbName);
|
|
break;
|
|
}
|
|
|
|
// Set permissions on file
|
|
if (! empty($conf->global->MAIN_UMASK)) @chmod($imgThumbName, octdec($conf->global->MAIN_UMASK));
|
|
|
|
// Free memory. This does not delete image.
|
|
imagedestroy($img);
|
|
imagedestroy($imgThumb);
|
|
|
|
return $imgThumbName;
|
|
}
|