schedule/src/Controller/CropController.php

<?php

namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Form\Extension\Core\Type\HiddenType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\HttpFoundation\Request;

class CropController extends AbstractController
{
    // Etape 01 - Téléchargement de l'image
    public function crop01()
    {
        return $this->render('Crop/crop01.html.twig', [
            'useheader' => false,
            'usemenu' => false,
            'usesidebar' => false,
        ]);
    }

    // Etape 02 - Couper votre l'image
    public function crop02(Request $request)
    {
        // Récupération de l'image à cropper
        $large_image_location = 'uploads/avatar/'.$this->get('session')->get('uploadavatar');

        // Récupérer les tailles de l'image
        $width = $this->getWidth($large_image_location);
        $height = $this->getHeight($large_image_location);

        // Définir le pourcentage de réduction de l'image
        $max_height = 400000;
        $max_width = 800;
        $scale = $max_height / $height;
        if (($width * $scale) > $max_width) {
            $scale = $max_width / $width;
        }
        $this->resizeImage($large_image_location, $width, $height, $scale);

        // Construction du formulaire
        $form = $this->createFormBuilder()
            ->add('submit', SubmitType::class, ['label' => 'Valider', 'attr' => ['class' => 'btn btn-success', 'onclick' => 'reportThumb()']])
            ->add('x', HiddenType::class)
            ->add('y', HiddenType::class)
            ->add('w', HiddenType::class)
            ->add('h', HiddenType::class)
            ->getForm();

        // Récupération des data du formulaire
        $form->handleRequest($request);

        // Sur validation on généère la miniature croppée
        if ($form->isSubmitted() && $form->isValid()) {
            // Récupération des valeurs du formulaire
            $data = $form->getData();

            $thumb_image_location = 'uploads/avatar/thumb_'.$this->get('session')->get('uploadavatar');
            $cropped = $this->resizeThumbnailImage($thumb_image_location, $large_image_location, $data['w'], $data['h'], $data['x'], $data['y'], $scale);
        }

        return $this->render('Crop/crop02.html.twig', [
            'useheader' => false,
            'usemenu' => false,
            'usesidebar' => false,
            'form' => $form->createView(),
        ]);
    }

    // Calcul de la hauteur
    protected function getHeight($image)
    {
        $size = getimagesize($image);
        $height = $size[1];

        return $height;
    }

    // Cacul de la largeur
    protected function getWidth($image)
    {
        $size = getimagesize($image);
        $width = $size[0];

        return $width;
    }

    protected function resizeImage($image, $width, $height, $scale)
    {
        list($imagewidth, $imageheight, $imageType) = getimagesize($image);
        $imageType = image_type_to_mime_type($imageType);
        $newImageWidth = ceil($width * $scale);
        $newImageHeight = ceil($height * $scale);
        $newImage = imagecreatetruecolor($newImageWidth, $newImageHeight);
        switch ($imageType) {
            case 'image/gif':
                $source = imagecreatefromgif($image);
                break;
            case 'image/pjpeg':
            case 'image/jpeg':
            case 'image/jpg':
                $source = imagecreatefromjpeg($image);
                break;
            case 'image/png':
            case 'image/x-png':
                $source = imagecreatefrompng($image);
                break;
            case 'image/webp':
                $source = imagecreatefromwebp($image);
                break;
        }
        imagecopyresampled($newImage, $source, 0, 0, 0, 0, $newImageWidth, $newImageHeight, $width, $height);

        switch ($imageType) {
            case 'image/gif':
                imagegif($newImage, $image);
                break;
            case 'image/pjpeg':
            case 'image/jpeg':
            case 'image/jpg':
                imagejpeg($newImage, $image, 90);
                break;
            case 'image/png':
            case 'image/x-png':
                imagepng($newImage, $image);
                break;
            case 'image/webp':
                imagewebp($newImage, $image, 90);
                break;
        }

        chmod($image, 0640);

        return $image;
    }

    protected function resizeThumbnailImage($thumb_image_name, $image, $width, $height, $start_width, $start_height, $scale)
    {
        list($imagewidth, $imageheight, $imageType) = getimagesize($image);
        $imageType = image_type_to_mime_type($imageType);

        $newImageWidth = ceil($width * $scale);
        $newImageHeight = ceil($height * $scale);
        $newImage = imagecreatetruecolor($newImageWidth, $newImageHeight);
        switch ($imageType) {
            case 'image/gif':
                $source = imagecreatefromgif($image);
                break;
            case 'image/pjpeg':
            case 'image/jpeg':
            case 'image/jpg':
                $source = imagecreatefromjpeg($image);
                break;
            case 'image/png':
            case 'image/x-png':
                $source = imagecreatefrompng($image);
                break;
            case 'image/webp':
                $source = imagecreatefromwebp($image);
                break;
        }
        imagecopyresampled($newImage, $source, 0, 0, $start_width, $start_height, $newImageWidth, $newImageHeight, $width, $height);
        switch ($imageType) {
            case 'image/gif':
                imagegif($newImage, $thumb_image_name);
                break;
            case 'image/pjpeg':
            case 'image/jpeg':
            case 'image/jpg':
                imagejpeg($newImage, $thumb_image_name, 90);
                break;
            case 'image/png':
            case 'image/x-png':
                imagepng($newImage, $thumb_image_name);
                break;
            case 'image/webp':
                imagewebp($newImage, $thumb_image_name, 90);
                break;
        }
        chmod($thumb_image_name, 0640);

        return $thumb_image_name;
    }
}