832 lines
27 KiB
PHP
832 lines
27 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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* Copyright (C) 2024 MDW <mdeweerd@users.noreply.github.com>
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* Copyright (C) 2024 Frédéric France <frederic.france@free.fr>
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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 <https://www.gnu.org/licenses/>.
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* or see https://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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// TODO Remove this and call getDefaultImageSizes() instead
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$maxwidthsmall = 480;
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$maxheightsmall = 270; // Near 16/9eme
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$maxwidthmini = 128;
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$maxheightmini = 72; // 16/9eme
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$quality = 80;
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if (!defined('IMAGETYPE_WEBP')) {
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define('IMAGETYPE_WEBP', 18);
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}
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/**
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* Return default values for image sizes
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*
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* @return array Array of default values
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*/
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function getDefaultImageSizes()
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{
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$maxwidthsmall = 480;
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$maxheightsmall = 270; // Near 16/9eme
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$maxwidthmini = 128;
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$maxheightmini = 72; // 16/9eme
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$quality = 80;
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return array(
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'maxwidthsmall' => $maxwidthsmall,
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'maxheightsmall' => $maxheightsmall,
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'maxwidthmini' => $maxwidthmini,
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'maxheightmini' => $maxheightmini,
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'quality' => $quality
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);
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}
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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 int $acceptsvg 0=Default (depends on setup), 1=Always accept SVG as image files
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* @return string Return list of image formats
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*/
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function getListOfPossibleImageExt($acceptsvg = 0)
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{
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$regeximgext = '\.gif|\.jpg|\.jpeg|\.png|\.bmp|\.webp|\.xpm|\.xbm'; // See also into product.class.php
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if ($acceptsvg || getDolGlobalString('MAIN_ALLOW_SVG_FILES_AS_IMAGES')) {
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$regeximgext .= '|\.svg'; // Not allowed by default. SVG can contains javascript
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}
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return $regeximgext;
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}
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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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* @param int $acceptsvg 0=Default (depends on setup), 1=Always accept SVG as image files
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* @return int -1=Not image filename, 0=Image filename but format not supported for conversion by PHP, 1=Image filename with format supported by this PHP
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*/
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function image_format_supported($file, $acceptsvg = 0)
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{
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$regeximgext = getListOfPossibleImageExt();
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// Case filename is not a format image
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$reg = array();
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if (!preg_match('/('.$regeximgext.')$/i', $file, $reg)) {
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return -1;
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}
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// Case filename is a format image but not supported by this PHP
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$imgfonction = '';
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if (strtolower($reg[1]) == '.gif') {
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$imgfonction = 'imagecreatefromgif';
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}
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if (strtolower($reg[1]) == '.jpg') {
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$imgfonction = 'imagecreatefromjpeg';
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}
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if (strtolower($reg[1]) == '.jpeg') {
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$imgfonction = 'imagecreatefromjpeg';
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}
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if (strtolower($reg[1]) == '.png') {
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$imgfonction = 'imagecreatefrompng';
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}
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if (strtolower($reg[1]) == '.bmp') {
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$imgfonction = 'imagecreatefromwbmp';
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}
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if (strtolower($reg[1]) == '.webp') {
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$imgfonction = 'imagecreatefromwebp';
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}
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if (strtolower($reg[1]) == '.xpm') {
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$imgfonction = 'imagecreatefromxpm';
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}
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if (strtolower($reg[1]) == '.xbm') {
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$imgfonction = 'imagecreatefromxbm';
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}
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if (strtolower($reg[1]) == '.svg') {
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$imgfonction = 'imagecreatefromsvg'; // Never available
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}
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if ($imgfonction) {
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if (!function_exists($imgfonction)) {
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// Functions of conversion not available in this PHP
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return 0;
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}
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// Filename is a format image and supported for conversion by this PHP
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return 1;
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}
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return 0;
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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, bmp and webp)
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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) {
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return $ret;
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}
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$filetoread = $file;
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if (!$url) {
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$filetoread = realpath(dol_osencode($file)); // Chemin canonique absolu de l'image
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}
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if ($filetoread) {
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$infoImg = getimagesize($filetoread); // Recuperation des infos de l'image
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if ($infoImg) {
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$ret['width'] = $infoImg[0]; // Largeur de l'image
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$ret['height'] = $infoImg[1]; // Hauteur de l'image
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} else {
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$ret['width'] = $ret['height'] = '';
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}
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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, bmp and webp)
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*
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* @param string $file Path of source 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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* @param string $filetowrite Path of file to write (overwrite source file if not provided)
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* @param int $newquality Value for the new quality of image, for supported format (use 0 for maximum/unchanged).
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* @return string File name if OK, error message if KO
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* @see dol_convert_file()
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*/
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function dol_imageResizeOrCrop($file, $mode, $newWidth, $newHeight, $src_x = 0, $src_y = 0, $filetowrite = '', $newquality = 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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// Si le fichier n'a pas ete indique
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return 'Bad parameter file';
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} elseif (!file_exists($file)) {
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// Si le fichier passe en parameter n'existe pas
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return $langs->trans("ErrorFileNotFound", $file);
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} elseif (image_format_supported($file) < 0) {
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return 'This filename '.$file.' does not seem to be an image filename.';
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} elseif (!is_numeric($newWidth) && !is_numeric($newHeight)) {
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return 'Wrong value for parameter newWidth or newHeight';
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} elseif ($mode == 0 && $newWidth <= 0 && $newHeight <= 0 && (empty($filetowrite) || $filetowrite == $file)) {
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return 'At least newHeight or newWidth must be defined for resizing, or a target filename must be set to convert';
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} elseif ($mode == 1 && ($newWidth <= 0 || $newHeight <= 0)) {
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return 'Both newHeight or newWidth must be defined for croping';
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}
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$filetoread = realpath(dol_osencode($file)); // Chemin canonique absolu de l'image
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$infoImg = getimagesize($filetoread); // Get data about src image
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$imgWidth = $infoImg[0]; // Largeur de l'image
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$imgHeight = $infoImg[1]; // Hauteur de l'image
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$imgTargetName = ($filetowrite ? $filetowrite : $file);
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$newExt = strtolower(pathinfo($imgTargetName, PATHINFO_EXTENSION));
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if ($mode == 0) { // If resize, we check parameters
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if (!empty($filetowrite) && $filetowrite != $file && $newWidth <= 0 && $newHeight <= 0) {
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$newWidth = $imgWidth;
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$newHeight = $imgHeight;
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}
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if ($newWidth <= 0) {
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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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$newHeight = intval(($newWidth / $imgWidth) * $imgHeight); // Keep ratio
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}
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}
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// Test function to read source image exists
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$imgfonction = '';
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switch ($infoImg[2]) {
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case 1: // IMG_GIF
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$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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$imgfonction = 'imagecreatefromwbmp';
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break;
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case 18: // IMG_WEBP
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$imgfonction = 'imagecreatefromwebp';
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break;
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}
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if ($imgfonction) {
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if (!function_exists($imgfonction)) {
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// Functions de conversion non presente dans ce PHP
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return 'Read of image not possible. This PHP does not support GD functions '.$imgfonction;
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}
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}
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// Test function to write target image exists
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if ($filetowrite) {
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$imgfonction = '';
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switch ($newExt) {
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case 'gif': // IMG_GIF
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$imgfonction = 'imagecreatefromgif';
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break;
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case 'jpg': // IMG_JPG
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case 'jpeg': // IMG_JPEG
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$imgfonction = 'imagecreatefromjpeg';
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break;
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case 'png': // IMG_PNG
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$imgfonction = 'imagecreatefrompng';
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break;
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case 'bmp': // IMG_WBMP
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$imgfonction = 'imagecreatefromwbmp';
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break;
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case 'webp': // IMG_WEBP
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$imgfonction = 'imagecreatefromwebp';
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break;
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}
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if ($imgfonction) {
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if (!function_exists($imgfonction)) {
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// Functions de conversion non presente dans ce PHP
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return 'Write of image not possible. This PHP does not support GD functions '.$imgfonction;
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}
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}
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}
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// Read source image file
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switch ($infoImg[2]) {
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case 1: // Gif
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$img = imagecreatefromgif($filetoread);
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$extImg = '.gif'; // File name extension of image
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break;
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case 2: // Jpg
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$img = imagecreatefromjpeg($filetoread);
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$extImg = '.jpg';
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break;
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case 3: // Png
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$img = imagecreatefrompng($filetoread);
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$extImg = '.png';
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break;
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case 4: // Bmp
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$img = imagecreatefromwbmp($filetoread);
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$extImg = '.bmp';
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break;
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case 18: // Webp
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$img = imagecreatefromwebp($filetoread);
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$extImg = '.webp';
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break;
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}
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// Create empty image for target
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if ($newExt == 'gif') {
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// Compatibility image GIF
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$imgTarget = imagecreate($newWidth, $newHeight);
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} else {
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$imgTarget = imagecreatetruecolor($newWidth, $newHeight);
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}
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// Activate antialiasing for better quality
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if (function_exists('imageantialias')) {
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imageantialias($imgTarget, 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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imagesavealpha($imgTarget, true);
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}
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// Set transparent color according to image extension
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$trans_colour = -1; // By default, undefined
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switch ($newExt) {
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case 'gif': // Gif
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$trans_colour = imagecolorallocate($imgTarget, 255, 255, 255); // The method is different for the GIF format
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imagecolortransparent($imgTarget, $trans_colour);
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break;
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case 'jpg': // Jpg
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case 'jpeg': // Jpeg
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$trans_colour = imagecolorallocatealpha($imgTarget, 255, 255, 255, 0);
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break;
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case 'png': // Png
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imagealphablending($imgTarget, false); // For compatibility with certain systems
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$trans_colour = imagecolorallocatealpha($imgTarget, 255, 255, 255, 127); // Keep transparent channel
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break;
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case 'bmp': // Bmp
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$trans_colour = imagecolorallocatealpha($imgTarget, 255, 255, 255, 0);
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break;
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case 'webp': // Webp
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$trans_colour = imagecolorallocatealpha($imgTarget, 255, 255, 255, 127);
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break;
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}
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if (function_exists("imagefill") && $trans_colour > 0) {
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imagefill($imgTarget, 0, 0, $trans_colour);
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}
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dol_syslog("dol_imageResizeOrCrop: convert image from ($imgWidth x $imgHeight) at position ($src_x x $src_y) to ($newWidth x $newHeight) as a $extImg");
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//imagecopyresized($imgTarget, $img, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $imgWidth, $imgHeight); // Insere l'image de base redimensionnee
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imagecopyresampled($imgTarget, $img, 0, 0, $src_x, $src_y, $newWidth, $newHeight, ($mode == 0 ? $imgWidth : $newWidth), ($mode == 0 ? $imgHeight : $newHeight)); // Insere l'image de base redimensionnee
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// Check if permission are ok
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//$fp = fopen($imgTargetName, "w");
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//fclose($fp);
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// Create image on disk (overwrite file if exists)
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switch ($newExt) {
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case 'gif': // Gif
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$newquality = 'NU'; // Quality is not used for this format
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imagegif($imgTarget, $imgTargetName);
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break;
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case 'jpg': // Jpg
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case 'jpeg': // Jpeg
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$newquality = ($newquality ? $newquality : '100'); // % quality maximum
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imagejpeg($imgTarget, $imgTargetName, $newquality);
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break;
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case 'png': // Png
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$newquality = 0; // No compression (0-9)
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imagepng($imgTarget, $imgTargetName, $newquality);
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break;
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case 'bmp': // Bmp
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$newquality = 'NU'; // Quality is not used for this format
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imagewbmp($imgTarget, $imgTargetName);
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break;
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case 'webp': // Webp
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$newquality = ($newquality ? $newquality : '100'); // % quality maximum
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imagewebp($imgTarget, $imgTargetName, $newquality);
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break;
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default:
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dol_syslog("images.lib.php::imageResizeOrCrop() Format ".$newExt." is not supported", LOG_WARNING);
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}
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// Set permissions on file
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dolChmod($imgTargetName);
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// Free memory. This does not delete image.
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imagedestroy($img);
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imagedestroy($imgTarget);
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clearstatcache(); // File was replaced by a modified one, so we clear file caches.
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return $imgTargetName;
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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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return correctExifImageOrientation($file_path, $file_path);
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}
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/**
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* Add exif orientation correction for image
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*
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* @param string $fileSource Full path to source image to rotate
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* @param string|bool $fileDest string : Full path to image to rotate | false return gd img | null the raw image stream will be outputted directly
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* @param int $quality output image quality
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* @return bool : true on success or false on failure or gd img if $fileDest is false.
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*/
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function correctExifImageOrientation($fileSource, $fileDest, $quality = 95)
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{
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if (function_exists('exif_read_data')) {
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$exif = @exif_read_data($fileSource);
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if ($exif && isset($exif['Orientation'])) {
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$infoImg = getimagesize($fileSource); // Get image infos
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$orientation = $exif['Orientation'];
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if ($orientation != 1) {
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$img = imagecreatefromjpeg($fileSource);
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$deg = 0;
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switch ($orientation) {
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case 3:
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$deg = 180;
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break;
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case 6:
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$deg = 270;
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break;
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case 8:
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$deg = 90;
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break;
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}
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if ($deg) {
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if ($infoImg[2] === IMAGETYPE_PNG) { // In fact there is no exif on PNG but just in case
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imagealphablending($img, false);
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imagesavealpha($img, true);
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$img = imagerotate($img, $deg, imagecolorallocatealpha($img, 0, 0, 0, 127));
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imagealphablending($img, false);
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imagesavealpha($img, true);
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} else {
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$img = imagerotate($img, $deg, 0);
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}
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}
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// then rewrite the rotated image back to the disk as $fileDest
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if ($fileDest === false) {
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return $img;
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} else {
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// In fact there exif is only for JPG but just in case
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// Create image on disk
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$image = false;
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switch ($infoImg[2]) {
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case IMAGETYPE_GIF: // 1
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$image = imagegif($img, $fileDest);
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break;
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case IMAGETYPE_JPEG: // 2
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$image = imagejpeg($img, $fileDest, $quality);
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break;
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case IMAGETYPE_PNG: // 3
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$image = imagepng($img, $fileDest, $quality);
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break;
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case IMAGETYPE_BMP: // 6
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// Not supported by PHP GD
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break;
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case IMAGETYPE_WBMP: // 15
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$image = imagewbmp($img, $fileDest);
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break;
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}
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// Free up memory (imagedestroy does not delete files):
|
|
@imagedestroy($img);
|
|
|
|
return $image;
|
|
}
|
|
} // if there is some rotation necessary
|
|
} // if have the exif orientation info
|
|
} // if function exists
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Create a thumbnail from an image file (Supported extensions are gif, jpg, png and bmp).
|
|
* If file is myfile.jpg, new file may be myfile_small.jpg
|
|
*
|
|
* @param string $file Path of source file to resize
|
|
* @param int $maxWidth Maximum width of the thumbnail (-1=unchanged, 160 by default)
|
|
* @param int $maxHeight Maximum height of the thumbnail (-1=unchanged, 120 by default)
|
|
* @param string $extName Extension to differentiate thumb file name ('_small', '_mini')
|
|
* @param int $quality Quality of compression (0=worst, 100=best)
|
|
* @param string $outdir Directory where to store thumb
|
|
* @param int $targetformat New format of target (IMAGETYPE_GIF, IMAGETYPE_JPG, IMAGETYPE_PNG, IMAGETYPE_BMP, IMAGETYPE_WBMP ... or 0 to keep old format)
|
|
* @return string|0 Full path of thumb or '' if it fails or 'Error...' if it fails, or 0 if it fails to detect the type of image
|
|
*/
|
|
function vignette($file, $maxWidth = 160, $maxHeight = 120, $extName = '_small', $quality = 50, $outdir = 'thumbs', $targetformat = 0)
|
|
{
|
|
require_once DOL_DOCUMENT_ROOT.'/core/lib/functions2.lib.php';
|
|
|
|
global $langs;
|
|
|
|
dol_syslog("vignette file=".$file." extName=".$extName." maxWidth=".$maxWidth." maxHeight=".$maxHeight." quality=".$quality." outdir=".$outdir." targetformat=".$targetformat);
|
|
|
|
// Clean parameters
|
|
$file = trim($file);
|
|
|
|
// Check parameters
|
|
if (!$file) {
|
|
// If the file has not been indicated
|
|
return 'ErrorBadParameters';
|
|
} elseif (!file_exists($file)) {
|
|
// If the file passed in parameter does not exist
|
|
dol_syslog($langs->trans("ErrorFileNotFound", $file), LOG_ERR);
|
|
return $langs->trans("ErrorFileNotFound", $file);
|
|
} elseif (image_format_supported($file) < 0) {
|
|
dol_syslog('This file '.$file.' does not seem to be an image format file name.', LOG_WARNING);
|
|
return 'ErrorBadImageFormat';
|
|
} elseif (!is_numeric($maxWidth) || empty($maxWidth) || $maxWidth < -1) {
|
|
// If max width is incorrect (not numeric, empty, or less than 0)
|
|
dol_syslog('Wrong value for parameter maxWidth', LOG_ERR);
|
|
return 'Error: Wrong value for parameter maxWidth';
|
|
} elseif (!is_numeric($maxHeight) || empty($maxHeight) || $maxHeight < -1) {
|
|
// If max height is incorrect (not numeric, empty, or less than 0)
|
|
dol_syslog('Wrong value for parameter maxHeight', LOG_ERR);
|
|
return 'Error: Wrong value for parameter maxHeight';
|
|
}
|
|
|
|
$filetoread = realpath(dol_osencode($file)); // Chemin canonique absolu de l'image
|
|
|
|
$infoImg = getimagesize($filetoread); // Recuperation des infos de l'image
|
|
$imgWidth = $infoImg[0]; // Largeur de l'image
|
|
$imgHeight = $infoImg[1]; // Hauteur de l'image
|
|
|
|
$ort = false;
|
|
if (function_exists('exif_read_data')) {
|
|
$exif = @exif_read_data($filetoread);
|
|
if ($exif && !empty($exif['Orientation'])) {
|
|
$ort = $exif['Orientation'];
|
|
}
|
|
}
|
|
|
|
if ($maxWidth == -1) {
|
|
$maxWidth = $infoImg[0]; // If size is -1, we keep unchanged
|
|
}
|
|
if ($maxHeight == -1) {
|
|
$maxHeight = $infoImg[1]; // If size is -1, we keep unchanged
|
|
}
|
|
|
|
// If the image is smaller than the maximum width and height, no thumbnail is created.
|
|
if ($infoImg[0] < $maxWidth && $infoImg[1] < $maxHeight) {
|
|
// On cree toujours les vignettes
|
|
dol_syslog("File size is smaller than thumb size", LOG_DEBUG);
|
|
//return 'Le fichier '.$file.' ne necessite pas de creation de vignette';
|
|
}
|
|
|
|
$imgfonction = '';
|
|
switch ($infoImg[2]) {
|
|
case IMAGETYPE_GIF: // 1
|
|
$imgfonction = 'imagecreatefromgif';
|
|
break;
|
|
case IMAGETYPE_JPEG: // 2
|
|
$imgfonction = 'imagecreatefromjpeg';
|
|
break;
|
|
case IMAGETYPE_PNG: // 3
|
|
$imgfonction = 'imagecreatefrompng';
|
|
break;
|
|
case IMAGETYPE_BMP: // 6
|
|
// Not supported by PHP GD
|
|
break;
|
|
case IMAGETYPE_WBMP: // 15
|
|
$imgfonction = 'imagecreatefromwbmp';
|
|
break;
|
|
case IMAGETYPE_WEBP: // 18
|
|
$imgfonction = 'imagecreatefromwebp';
|
|
break;
|
|
}
|
|
if ($imgfonction) {
|
|
if (!function_exists($imgfonction)) {
|
|
// Conversion functions not present in this PHP
|
|
return 'Error: Creation of thumbs not possible. This PHP does not support GD function '.$imgfonction;
|
|
}
|
|
}
|
|
|
|
// We create the directory containing the thumbnails
|
|
$dirthumb = dirname($file).($outdir ? '/'.$outdir : ''); // Path to thumbnail folder
|
|
dol_mkdir($dirthumb);
|
|
|
|
// Variable initialization according to image extension
|
|
$img = null;
|
|
switch ($infoImg[2]) {
|
|
case IMAGETYPE_GIF: // 1
|
|
$img = imagecreatefromgif($filetoread);
|
|
$extImg = '.gif';
|
|
break;
|
|
case IMAGETYPE_JPEG: // 2
|
|
$img = imagecreatefromjpeg($filetoread);
|
|
$extImg = (preg_match('/\.jpeg$/', $file) ? '.jpeg' : '.jpg');
|
|
break;
|
|
case IMAGETYPE_PNG: // 3
|
|
$img = imagecreatefrompng($filetoread);
|
|
$extImg = '.png';
|
|
break;
|
|
case IMAGETYPE_BMP: // 6
|
|
// Not supported by PHP GD
|
|
$extImg = '.bmp';
|
|
break;
|
|
case IMAGETYPE_WBMP: // 15
|
|
$img = imagecreatefromwbmp($filetoread);
|
|
$extImg = '.bmp';
|
|
break;
|
|
case IMAGETYPE_WEBP: // 18
|
|
$img = imagecreatefromwebp($filetoread);
|
|
$extImg = '.webp';
|
|
break;
|
|
}
|
|
|
|
// Before PHP8, img was a resource, With PHP8, it is a GdImage
|
|
// if (!is_resource($img) && class_exists('GdImage') && !($img instanceof GdImage)) {
|
|
if (is_null($img) || $img === false) {
|
|
dol_syslog('Failed to detect type of image. We found infoImg[2]='.$infoImg[2], LOG_WARNING);
|
|
return 0;
|
|
}
|
|
|
|
$exifAngle = false;
|
|
if ($ort && getDolGlobalString('MAIN_USE_EXIF_ROTATION')) {
|
|
switch ($ort) {
|
|
case 3: // 180 rotate left
|
|
$exifAngle = 180;
|
|
break;
|
|
case 6: // 90 rotate right
|
|
$exifAngle = -90;
|
|
// changing sizes
|
|
$trueImgWidth = $infoImg[1];
|
|
$trueImgHeight = $infoImg[0];
|
|
break;
|
|
case 8: // 90 rotate left
|
|
$exifAngle = 90;
|
|
// changing sizes
|
|
$trueImgWidth = $infoImg[1]; // Largeur de l'image
|
|
$trueImgHeight = $infoImg[0]; // Hauteur de l'image
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ($exifAngle) {
|
|
$rotated = false;
|
|
|
|
if ($infoImg[2] === IMAGETYPE_PNG) { // In fact there is no exif on PNG but just in case
|
|
imagealphablending($img, false);
|
|
imagesavealpha($img, true);
|
|
$rotated = imagerotate($img, $exifAngle, imagecolorallocatealpha($img, 0, 0, 0, 127));
|
|
imagealphablending($rotated, false);
|
|
imagesavealpha($rotated, true);
|
|
} else {
|
|
$rotated = imagerotate($img, $exifAngle, 0);
|
|
}
|
|
|
|
// replace image with good orientation
|
|
if (!empty($rotated) && isset($trueImgWidth) && isset($trueImgHeight)) {
|
|
$img = $rotated;
|
|
$imgWidth = $trueImgWidth;
|
|
$imgHeight = $trueImgHeight;
|
|
}
|
|
}
|
|
|
|
// Initialize thumbnail dimensions if larger than original
|
|
if ($maxWidth > $imgWidth) {
|
|
$maxWidth = $imgWidth;
|
|
}
|
|
if ($maxHeight > $imgHeight) {
|
|
$maxHeight = $imgHeight;
|
|
}
|
|
|
|
$whFact = $maxWidth / $maxHeight; // Width/height factor for maximum label dimensions
|
|
$imgWhFact = $imgWidth / $imgHeight; // Original width/height factor
|
|
|
|
// Set label dimensions
|
|
if ($whFact < $imgWhFact) {
|
|
// If determining width
|
|
$thumbWidth = $maxWidth;
|
|
$thumbHeight = $thumbWidth / $imgWhFact;
|
|
} else {
|
|
// If determining height
|
|
$thumbHeight = $maxHeight;
|
|
$thumbWidth = $thumbHeight * $imgWhFact;
|
|
}
|
|
$thumbHeight = (int) round($thumbHeight);
|
|
$thumbWidth = (int) round($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);
|
|
}
|
|
|
|
// Variable initialization according to image extension
|
|
// $targetformat is 0 by default, in such case, we keep original extension
|
|
switch ($targetformat) {
|
|
case IMAGETYPE_GIF: // 1
|
|
$trans_colour = imagecolorallocate($imgThumb, 255, 255, 255); // The GIF format works differently
|
|
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); // For compatibility on certain systems
|
|
$trans_colour = imagecolorallocatealpha($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;
|
|
case IMAGETYPE_WEBP: // 18
|
|
$trans_colour = imagecolorallocatealpha($imgThumb, 255, 255, 255, 0);
|
|
$extImgTarget = '.webp';
|
|
$newquality = $quality;
|
|
break;
|
|
}
|
|
if (function_exists("imagefill")) {
|
|
imagefill($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, $imgHeight); // Insert resized base image
|
|
imagecopyresampled($imgThumb, $img, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $imgWidth, $imgHeight); // Insert resized base image
|
|
|
|
$fileName = preg_replace('/(\.gif|\.jpeg|\.jpg|\.png|\.bmp)$/i', '', $file); // We remove any extension box
|
|
$fileName = basename($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, $newquality);
|
|
break;
|
|
case IMAGETYPE_BMP: // 6
|
|
// Not supported by PHP GD
|
|
break;
|
|
case IMAGETYPE_WBMP: // 15
|
|
imagewbmp($imgThumb, $imgThumbName);
|
|
break;
|
|
case IMAGETYPE_WEBP: // 18
|
|
imagewebp($imgThumb, $imgThumbName, $newquality);
|
|
break;
|
|
}
|
|
|
|
// Set permissions on file
|
|
dolChmod($imgThumbName);
|
|
|
|
// Free memory. This does not delete image.
|
|
imagedestroy($img);
|
|
imagedestroy($imgThumb);
|
|
|
|
return $imgThumbName;
|
|
}
|
|
|
|
|
|
/**
|
|
* Beautify an image by adding a link edit and delete on image
|
|
*
|
|
* @param string $htmlid ID of HTML img tag
|
|
* @param string $urledit URL to submit to edit Image
|
|
* @param string $urldelete URL to call when deleting the image
|
|
* @return string HTML and JS code to manage the update/delete of image.
|
|
*/
|
|
function imgAddEditDeleteButton($htmlid, $urledit, $urldelete)
|
|
{
|
|
// TODO
|
|
return '';
|
|
}
|