Initial commit
This commit is contained in:
382
www/fonctions/image.php
Normal file
382
www/fonctions/image.php
Normal file
@@ -0,0 +1,382 @@
|
||||
<?php
|
||||
/*************************************************************************************/
|
||||
/* */
|
||||
/* Thelia */
|
||||
/* */
|
||||
/* Copyright (c) 2005-2013 OpenStudio */
|
||||
/* email : info@thelia.fr */
|
||||
/* web : http://www.thelia.net */
|
||||
/* */
|
||||
/* This program is free software; you can redistribute it and/or modify */
|
||||
/* it under the terms of the GNU General Public License as published by */
|
||||
/* the Free Software Foundation; either version 3 of the License */
|
||||
/* */
|
||||
/* This program is distributed in the hope that it will be useful, */
|
||||
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
|
||||
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
|
||||
/* GNU General Public License for more details. */
|
||||
/* */
|
||||
/* You should have received a copy of the GNU General Public License */
|
||||
/* along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
||||
/* */
|
||||
/*************************************************************************************/
|
||||
|
||||
require_once(__DIR__ . "/autoload.php");
|
||||
|
||||
/* Constante définissant le type de redimensionnement */
|
||||
define("IMAGE_REDIM_RATIO", 0);
|
||||
define("IMAGE_REDIM_BORDURE", 1);
|
||||
define("IMAGE_REDIM_RECADRE", 2);
|
||||
|
||||
/**
|
||||
* Compatiblité avec php 5.5
|
||||
*/
|
||||
if(!defined('IMG_FLIP_VERTICAL')) {
|
||||
define('IMG_FLIP_VERTICAL', 2);
|
||||
}
|
||||
|
||||
function get_img_quality($nomvar, $min, $max, $defaut) {
|
||||
$quality = intval(Variable::lire($nomvar, $defaut));
|
||||
|
||||
if ($quality < $min || $quality > $max) $quality = $defaut;
|
||||
|
||||
return $quality;
|
||||
}
|
||||
|
||||
/*
|
||||
* Redimensionne une image, en remplaçant l'image originale
|
||||
* (semble inutilisé dans Thelia)
|
||||
*/
|
||||
function resize($nomorig, $width){
|
||||
|
||||
if (file_exists($nomorig)) {
|
||||
|
||||
$image_new = traiter_image($nomorig, $width, "", "", "", "", "", "ffffff", $type) ;
|
||||
|
||||
if ($image_new) {
|
||||
switch ($type) {
|
||||
case IMAGETYPE_GIF:
|
||||
$flag = imagegif($image_new, $nomorig);
|
||||
break;
|
||||
|
||||
case IMAGETYPE_PNG:
|
||||
$flag = imagepng($image_new, $nomorig, get_img_quality('qualite_vignettes_png', 1, 10, 7));
|
||||
break;
|
||||
|
||||
case IMAGETYPE_JPEG:
|
||||
default:
|
||||
$flag = imagejpeg($image_new, $nomorig, get_img_quality('qualite_vignettes_jpeg', 10, 100, 75));
|
||||
break;
|
||||
}
|
||||
|
||||
imagedestroy($image_new);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Retournement vertical d'une image
|
||||
*/
|
||||
function effet_miroir(&$dest, &$src) {
|
||||
|
||||
$w = imagesx($src);
|
||||
$h = imagesy($src);
|
||||
$alpha = 127;
|
||||
for($y=0; $y<$h; $y++) {
|
||||
for ($x=0; $x<$w; $x++) {
|
||||
$couleur = imagecolorsforindex($src, imagecolorat($src, $x, $y));
|
||||
$couleurAlpha = imagecolorallocatealpha($dest, $couleur['red'], $couleur['green'], $couleur['blue'], $alpha);
|
||||
imagesetpixel($dest, $x, ($h-$y), $couleurAlpha);
|
||||
}
|
||||
if($alpha > 1) $alpha--;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Redimensionnement et traitement d'une image
|
||||
*/
|
||||
function redim($type, $nomorig, $dest_width="", $dest_height="", $opacite="", $nb="", $miroir="", $checktype=1, $exact=0, $couleurfond="ffffff") {
|
||||
|
||||
if ($checktype == 0 || $type == "produit" || $type =="rubrique" || $type == "contenu" || $type == "dossier") {
|
||||
|
||||
$nomorig = __DIR__ . "/../client/gfx/photos/$type/" . $nomorig;
|
||||
|
||||
if (file_exists($nomorig) && preg_match("/([^\/]*).((jpg|gif|png|jpeg))/i", $nomorig, $nsimple)) {
|
||||
|
||||
$nomcache = "client/cache/" . $type . "/" . $dest_width . "_" . $dest_height . "_" . $opacite . "_" . $nb . "_" . $miroir . "_" . $exact . "_" . $couleurfond . "_" . $nsimple[1] . "." . $nsimple[2];
|
||||
$pathcache = __DIR__ . "/../$nomcache";
|
||||
|
||||
if (file_exists($pathcache)
|
||||
||
|
||||
traiter_et_cacher_image($nomorig, $pathcache, $dest_width, $dest_height, $opacite, $nb, $miroir, $exact, $couleurfond)) {
|
||||
|
||||
return $nomcache;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return "";
|
||||
}
|
||||
|
||||
/*
|
||||
* Créer dans $fichier_cache une version retraitée de l'image $fichier_original
|
||||
*/
|
||||
function traiter_et_cacher_image($fichier_original, $fichier_cache, $dest_width="", $dest_height="", $opacite="", $nb="", $miroir="", $exact=0, $couleurfond="ffffff") {
|
||||
|
||||
// Traiter le fichier
|
||||
$image_new = traiter_image($fichier_original, $dest_width, $dest_height, $opacite, $nb, $miroir, $exact, $couleurfond, $type) ;
|
||||
|
||||
if ($image_new) {
|
||||
|
||||
switch ($type) {
|
||||
case IMAGETYPE_GIF:
|
||||
$flag = imagegif($image_new, $fichier_cache);
|
||||
break;
|
||||
|
||||
case IMAGETYPE_PNG:
|
||||
$flag = imagepng($image_new, $fichier_cache, get_img_quality('qualite_vignettes_png', 1, 10, 7));
|
||||
break;
|
||||
|
||||
case IMAGETYPE_JPEG:
|
||||
default:
|
||||
$flag = imagejpeg($image_new, $fichier_cache, get_img_quality('qualite_vignettes_jpeg', 10, 100, 75));
|
||||
break;
|
||||
}
|
||||
|
||||
@imagedestroy($image_new);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert a hexa decimal color code to its RGB equivalent
|
||||
*
|
||||
* @param string $hexStr (hexadecimal color value)
|
||||
* @param boolean $returnAsString (if set true, returns the value separated by the separator character. Otherwise returns associative array)
|
||||
* @param string $seperator (to separate RGB values. Applicable only if second parameter is true.)
|
||||
* @return array or string (depending on second parameter. Returns white color if invalid hex color value)
|
||||
* @author hafees at msn dot com
|
||||
*/
|
||||
function hex2RGB($hexStr) {
|
||||
$hexStr = preg_replace("/[^0-9A-Fa-f]/", '', $hexStr); // Gets a proper hex string
|
||||
$rgbArray = array();
|
||||
if (strlen($hexStr) == 6) {
|
||||
//If a proper hex code, convert using bitwise operation. No overhead... faster
|
||||
$colorVal = hexdec($hexStr);
|
||||
$rgbArray['red'] = 0xFF & ($colorVal >> 0x10);
|
||||
$rgbArray['green'] = 0xFF & ($colorVal >> 0x8);
|
||||
$rgbArray['blue'] = 0xFF & $colorVal;
|
||||
} elseif (strlen($hexStr) == 3) {
|
||||
//if shorthand notation, need some string manipulations
|
||||
$rgbArray['red'] = hexdec(str_repeat(substr($hexStr, 0, 1), 2));
|
||||
$rgbArray['green'] = hexdec(str_repeat(substr($hexStr, 1, 1), 2));
|
||||
$rgbArray['blue'] = hexdec(str_repeat(substr($hexStr, 2, 1), 2));
|
||||
} else {
|
||||
// Incorrect color -> return white
|
||||
$rgbArray['red'] = 0xFF;
|
||||
$rgbArray['green'] = 0xFF;
|
||||
$rgbArray['blue'] = 0xFF;
|
||||
}
|
||||
return $rgbArray;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Appliquer les divers traitements à une image
|
||||
*/
|
||||
function traiter_image($nomorig, $dest_width, $dest_height, $opacite, $nb, $miroir, $exact, $couleurfond, &$type) {
|
||||
|
||||
list($width_orig, $height_orig, $type, $attr) = getimagesize($nomorig);
|
||||
|
||||
if (!$width_orig) return false;
|
||||
|
||||
if ($dest_width == NULL) $dest_width = $width_orig;
|
||||
if ($dest_height == NULL) $dest_height = $height_orig;
|
||||
|
||||
$width_diff = $dest_width / $width_orig;
|
||||
$height_diff = $dest_height / $height_orig;
|
||||
|
||||
$delta_x = $delta_y = $border_width = $border_height = 0;
|
||||
|
||||
if ($width_diff > 1 AND $height_diff > 1) {
|
||||
$next_width = $width_orig;
|
||||
$next_height = $height_orig;
|
||||
$dest_width = (intval($exact) == 1 ? $dest_width : $next_width);
|
||||
$dest_height = (intval($exact) == 1 ? $dest_height : $next_height);
|
||||
}
|
||||
else {
|
||||
if ($width_diff > $height_diff) {
|
||||
|
||||
$next_height = $dest_height;
|
||||
$next_width = intval(($width_orig * $next_height) / $height_orig);
|
||||
|
||||
if ($exact == IMAGE_REDIM_RECADRE) {
|
||||
|
||||
$dest_ratio = $dest_width / $width_orig;
|
||||
$ho = $dest_height / $dest_ratio;
|
||||
$delta_y = ($height_orig - $ho) / 2;
|
||||
|
||||
$height_orig = $ho;
|
||||
|
||||
$next_width = $dest_width;
|
||||
}
|
||||
else if ($exact != IMAGE_REDIM_BORDURE) {
|
||||
$dest_width = $next_width;
|
||||
}
|
||||
}
|
||||
else {
|
||||
|
||||
$next_width = $dest_width;
|
||||
$next_height = intval($height_orig * $dest_width / $width_orig);
|
||||
|
||||
if ($exact == IMAGE_REDIM_RECADRE) {
|
||||
|
||||
$dest_ratio = $dest_height / $height_orig;
|
||||
$wo = $dest_width / $dest_ratio;
|
||||
$delta_x = ($width_orig - $wo) / 2;
|
||||
|
||||
$width_orig = $wo;
|
||||
|
||||
$next_height = $dest_height;
|
||||
}
|
||||
else if ($exact != IMAGE_REDIM_BORDURE) {
|
||||
$dest_height = $next_height;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if ($exact == IMAGE_REDIM_BORDURE) {
|
||||
$border_width = intval(($dest_width - $next_width) / 2);
|
||||
$border_height = intval(($dest_height - $next_height) / 2);
|
||||
}
|
||||
|
||||
$image_new = imagecreatetruecolor($dest_width, $dest_height);
|
||||
|
||||
switch ($type)
|
||||
{
|
||||
case IMAGETYPE_GIF:
|
||||
$image_orig= imagecreatefromgif($nomorig);
|
||||
break;
|
||||
|
||||
case IMAGETYPE_JPEG:
|
||||
default:
|
||||
$image_orig= imagecreatefromjpeg($nomorig);
|
||||
break;
|
||||
|
||||
case IMAGETYPE_PNG:
|
||||
$image_orig = imagecreatefrompng($nomorig);
|
||||
break;
|
||||
}
|
||||
|
||||
// Preparer la couleur de fond (pour bordures, transparence, miroir)
|
||||
if ($couleurfond == '') $couleurfond = 'ffffff';
|
||||
|
||||
$fondrgb = hex2RGB($couleurfond);
|
||||
|
||||
// Définir la couleur de fond générale
|
||||
$bgcolor = imagecolorallocate($image_new, $fondrgb['red'], $fondrgb['green'], $fondrgb['blue']);
|
||||
|
||||
|
||||
// Préserver la transparence des gifs et png
|
||||
if ($type != IMAGETYPE_JPEG) {
|
||||
$trnprt_indx = imagecolortransparent($image_orig);
|
||||
|
||||
// If we have a specific transparent color
|
||||
if ($trnprt_indx >= 0) {
|
||||
|
||||
// Get the original image's transparent color's RGB values
|
||||
$trnprt_color = imagecolorsforindex($image_orig, $trnprt_indx);
|
||||
|
||||
// Allocate the same color in the new image resource
|
||||
$trnprt_indx = imagecolorallocate($image_new, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);
|
||||
|
||||
// Completely fill the background of the new image with allocated color.
|
||||
imagefill($image_new, 0, 0, $trnprt_indx);
|
||||
|
||||
// Set the background color for new image to transparent
|
||||
imagecolortransparent($image_new, $trnprt_indx);
|
||||
}
|
||||
else {
|
||||
// Turn off transparency blending (temporarily)
|
||||
imagealphablending($image_new, false);
|
||||
|
||||
// Create a new transparent color for image
|
||||
$color = imagecolorallocatealpha($image_new, 0, 0, 0, 127);
|
||||
|
||||
// Completely fill the background of the new image with allocated color.
|
||||
imagefill($image_new, 0, 0, $color);
|
||||
|
||||
// Restore transparency blending
|
||||
imagesavealpha($image_new, true);
|
||||
|
||||
// Remplir avec la couleur de fond
|
||||
imagefill($image_new, 0, 0, $bgcolor);
|
||||
}
|
||||
}
|
||||
else {
|
||||
// Remplir avec la couleur de fond
|
||||
imagefill($image_new, 0, 0, $bgcolor);
|
||||
}
|
||||
|
||||
if($opacite != "") {
|
||||
|
||||
$opac_img = imagecreatetruecolor($width_orig, $height_orig);
|
||||
|
||||
imagefill($opac_img, 0, 0, $bgcolor);
|
||||
|
||||
imagecopymerge($opac_img, $image_orig, 0,0,0,0, $width_orig, $height_orig, $opacite);
|
||||
|
||||
$image_orig = $opac_img;
|
||||
}
|
||||
|
||||
// Redimensionnement, avec ajout éventuel de bordures.
|
||||
imagecopyresampled($image_new, $image_orig, $border_width, $border_height, $delta_x, $delta_y, $next_width, $next_height, $width_orig, $height_orig);
|
||||
|
||||
// Noir et blanc
|
||||
if($nb != "") {
|
||||
|
||||
imagetruecolortopalette($image_new, false, 256);
|
||||
|
||||
$total = ImageColorsTotal($image_new);
|
||||
|
||||
for( $i=0; $i<$total; $i++) {
|
||||
$old = ImageColorsForIndex($image_new, $i);
|
||||
$commongrey = (int)(($old['red'] + $old['green'] + $old['blue']) / 3);
|
||||
ImageColorSet($image_new, $i, $commongrey, $commongrey, $commongrey);
|
||||
}
|
||||
}
|
||||
|
||||
if($miroir != "") {
|
||||
|
||||
$mh = intval($miroir) == 1 ? 50 : intval($miroir);
|
||||
|
||||
$largeur = imagesx($image_new);
|
||||
$hauteur = imagesy($image_new);
|
||||
|
||||
$temporaireUn = imagecreatetruecolor($largeur, $mh);
|
||||
$temporaireDeux = imagecreatetruecolor($largeur, $mh);
|
||||
$resultat = imagecreatetruecolor($largeur, $hauteur+$mh);
|
||||
|
||||
imagefill($resultat, 1, 1, $bgcolor);
|
||||
|
||||
imagefill($temporaireDeux, 1, 1, $bgcolor);
|
||||
|
||||
imagecopy ($resultat, $image_new, 0, 0, 0, 0, $largeur, $hauteur);
|
||||
imagecopy ($temporaireUn, $image_new, 0, 0, 0, $hauteur-$mh, $largeur, $mh);
|
||||
|
||||
effet_miroir($temporaireDeux, $temporaireUn);
|
||||
|
||||
|
||||
imagecopy ($resultat, $temporaireDeux, 0, $hauteur, 0, 0, $largeur, $mh);
|
||||
|
||||
$image_new = $resultat;
|
||||
}
|
||||
|
||||
return $image_new;
|
||||
}
|
||||
?>
|
||||
Reference in New Issue
Block a user