| Current File : /var/www/vinorea/modules/tvcmscustomsetting/classes/tvcmsresizemasterclass.php |
<?php
/**
* 2007-2025 PrestaShop.
*
* NOTICE OF LICENSE
*
* This source file is subject to the Academic Free License (AFL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/afl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
* @author PrestaShop SA <contact@prestashop.com>
* @copyright 2007-2025 PrestaShop SA
* @license http://opensource.org/licenses/afl-3.0.php Academic Free License (AFL 3.0)
* International Registered Trademark & Property of PrestaShop SA
*/
class TvcmsResizeMasterClass
{
// *** Class variables
private $image;
private $width;
private $height;
private $imgResized;
public function __construct($fileName)
{
// *** Open up the file
$this->image = $this->openImage($fileName);
// *** Get width and height
$this->width = imagesx($this->image);
$this->height = imagesy($this->image);
}
// # --------------------------------------------------------
private function openImage($file)
{
// *** Get extension
$extension = Tools::strtolower(strrchr($file, '.'));
switch ($extension) {
case '.jpg':
case '.jpeg':
$img = @imagecreatefromjpeg($file);
break;
case '.gif':
$img = @imagecreatefromgif($file);
break;
case '.png':
$img = @imagecreatefrompng($file);
break;
default:
$img = false;
break;
}
return $img;
}
// # --------------------------------------------------------
public function resizeImage($newWd, $newHt, $type = 0)
{
$option = '';
switch ($type) {
case 1:
$option = 'exact';
break;
case 2:
$option = 'portrait';
break;
case 3:
$option = 'landscape';
break;
case 4:
$option = 'auto';
break;
case 5:
$option = 'crop';
break;
default:
$option = 'exact';
break;
}
// *** Get optimal width and height - based on $option
$optionArray = $this->getDimensions($newWd, $newHt, $option);
$oplWd = $optionArray['oplWd'];
$optHt = $optionArray['optHt'];
// *** Resample - create image canvas of x, y size
$this->imgResized = imagecreatetruecolor($oplWd, $optHt);
// Make the background transparent
imagealphablending($this->imgResized, false);
imagesavealpha($this->imgResized, true);
imagecopyresampled($this->imgResized, $this->image, 0, 0, 0, 0, $oplWd, $optHt, $this->width, $this->height);
// *** if option is 'crop', then crop too
if ('crop' == $option) {
$this->crop($oplWd, $optHt, $newWd, $newHt);
}
}
// # --------------------------------------------------------
private function getDimensions($newWd, $newHt, $option)
{
switch ($option) {
case 'exact':
$oplWd = $newWd;
$optHt = $newHt;
break;
case 'portrait':
$oplWd = $this->getSizeByFixedHeight($newHt);
$optHt = $newHt;
break;
case 'landscape':
$oplWd = $newWd;
$optHt = $this->getSizeByFixedWidth($newWd);
break;
case 'auto':
$optionArray = $this->getSizeByAuto($newWd, $newHt);
$oplWd = $optionArray['oplWd'];
$optHt = $optionArray['optHt'];
break;
case 'crop':
$optionArray = $this->getOptimalCrop($newWd, $newHt);
$oplWd = $optionArray['oplWd'];
$optHt = $optionArray['optHt'];
break;
}
return ['oplWd' => $oplWd, 'optHt' => $optHt];
}
// # --------------------------------------------------------
private function getSizeByFixedHeight($newHt)
{
$ratio = $this->width / $this->height;
$newWd = $newHt * $ratio;
return $newWd;
}
private function getSizeByFixedWidth($newWd)
{
$ratio = $this->height / $this->width;
$newHt = $newWd * $ratio;
return $newHt;
}
private function getSizeByAuto($newWd, $newHt)
{
if ($this->height < $this->width) {
// *** Image to be resized is wider (landscape)
$oplWd = $newWd;
$optHt = $this->getSizeByFixedWidth($newWd);
} elseif ($this->height > $this->width) {
// *** Image to be resized is taller (portrait)
$oplWd = $this->getSizeByFixedHeight($newHt);
$optHt = $newHt;
} else {
// *** Image to be resizerd is a square
if ($newHt < $newWd) {
$oplWd = $newWd;
$optHt = $this->getSizeByFixedWidth($newWd);
} elseif ($newHt > $newWd) {
$oplWd = $this->getSizeByFixedHeight($newHt);
$optHt = $newHt;
} else {
// *** Sqaure being resized to a square
$oplWd = $newWd;
$optHt = $newHt;
}
}
return ['oplWd' => $oplWd, 'optHt' => $optHt];
}
private function getOptimalCrop($newWd, $newHt)
{
$heightRatio = $this->height / $newHt;
$widthRatio = $this->width / $newWd;
if ($heightRatio < $widthRatio) {
$optimalRatio = $heightRatio;
} else {
$optimalRatio = $widthRatio;
}
$optHt = $this->height / $optimalRatio;
$oplWd = $this->width / $optimalRatio;
return ['oplWd' => $oplWd, 'optHt' => $optHt];
}
// # --------------------------------------------------------
private function crop($oplWd, $optHt, $newWd, $newHt)
{
// *** Find center - this will be used for the crop
$cropStX = ($oplWd / 2) - ($newWd / 2);
$cropStY = ($optHt / 2) - ($newHt / 2);
$crop = $this->imgResized;
// imagedestroy($this->imgResized);
// *** Now crop from center to exact requested size
$this->imgResized = imagecreatetruecolor($newWd, $newHt);
imagecopyresampled($this->imgResized, $crop, 0, 0, $cropStX, $cropStY, $newWd, $newHt, $newWd, $newHt);
}
// # --------------------------------------------------------
public function saveImage($savePath, $showImage = false, $imageQuality = '100')
{
// *** Get extension
$ext = explode('.', $savePath);
$extension = end($ext);
$extension = Tools::strtolower('.' . $extension);
if (!$showImage) {
switch ($extension) {
case '.jpg':
case '.jpeg':
if (imagetypes() & IMG_JPG) {
@imagejpeg($this->imgResized, $savePath, $imageQuality);
}
break;
case '.gif':
if (imagetypes() & IMG_GIF) {
@imagegif($this->imgResized, $savePath);
}
break;
case '.png':
// *** Scale quality from 0-100 to 0-9
$scaleQuality = round(($imageQuality / 100) * 9);
// *** Invert quality setting as 0 is best, not 9
$invertScaleQuality = 9 - $scaleQuality;
if (imagetypes() & IMG_PNG) {
@imagepng($this->imgResized, $savePath, $invertScaleQuality);
}
break;
// ... etc
default:
// *** No extension - No save.
break;
}
} else {// for show image
switch ($extension) {
case '.jpg':
case '.jpeg':
Tools::redirect('Content-Type: image/jpg');
@imagejpeg($this->imgResized);
break;
case '.gif':
Tools::redirect('Content-Type: image/gif');
@imagegif($this->imgResized);
break;
case '.png':
Tools::redirect('Content-Type: image/png');
@imagepng($this->imgResized);
break;
}
}
imagedestroy($this->imgResized);
}
}