src/utils/func.image-crop.php ➔ crop()

Complexity

Conditions	8
Paths	13

Size

Total Lines	56
Code Lines	37

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php

function crop($image, $mimeType, $imgWidth, $imgHeight, $newWidth, $newHeight)

{


    switch ($mimeType) {

        case "jpg":

        case "jpeg":

            $imageCreate = imagecreatefromjpeg($image);

            break;


        case "png":

            $imageCreate = imagecreatefrompng($image);

            break;


        case "gif":

            $imageCreate = imagecreatefromgif($image);

            break;


        default:

            throw new \Exception(" Only gif, jpg, jpeg and png files can be cropped ");

            break;

    }


    // The image offsets/coordination to crop the image.

    $widthTrim = ceil(($imgWidth - $newWidth) / 2);

    $heightTrim = ceil(($imgHeight - $newHeight) / 2);


    // Can't crop to a bigger size, ex: 

    // an image with 100X100 can not be cropped to 200X200. Image can only be cropped to smaller size.

    if ($widthTrim < 0 && $heightTrim < 0) {

        return;

    }


    $temp = imagecreatetruecolor($newWidth, $newHeight);

    imageAlphaBlending($temp, false);

    imageSaveAlpha($temp, true);

    imagecopyresampled(

        $temp,

        $imageCreate,

        0,

        0,

        $widthTrim,

        $heightTrim,

        $newWidth,

        $newHeight,

        $newWidth,

        $newHeight

    );



    if (!$temp) {

        throw new \Exception("Failed to crop image. Please pass the right parameters");

    } else {

        imagejpeg($temp, $image);

    }


}