Dart/Flutter Alternative to PHP's resize_crop_image? - php

Question

Currently, I am resizing avatars on my server using PHP's resize_crop_image. The code below takes an image, crops and resizes it so that it's exactly 500px X 500px square.
resize_crop_image(500, 500, $filename, $filename);
But I'd like to move this process from the server to the flutter app. Most of the plugins I'm seeing on pub.dev are overkill with the user cropping the image using a crop tool. But I'd like this function to happen automatically the way I currently do it in PHP.
Here's the resize_crop_image code;
function resize_crop_image($max_width, $max_height, $source_file, $dst_dir, $quality = 100){
$imgsize = getimagesize($source_file);
$width = $imgsize[0];
$height = $imgsize[1];
$mime = $imgsize['mime'];
switch($mime){
case 'image/gif':
$image_create = "imagecreatefromgif";
$image = "imagegif";
break;
case 'image/png':
$image_create = "imagecreatefrompng";
$image = "imagepng";
$quality = 10;
break;
case 'image/jpeg':
$image_create = "imagecreatefromjpeg";
$image = "imagejpeg";
$quality = 100;
break;
default:
return false;
break;
}
$dst_img = imagecreatetruecolor($max_width, $max_height);
$src_img = $image_create($source_file);
$width_new = $height * $max_width / $max_height;
$height_new = $width * $max_height / $max_width;
//if the new width is greater than the actual width of the image, then the height is too large and the rest cut off, or vice versa
if($width_new > $width){
//cut point by height
$h_point = (($height - $height_new) / 2);
//copy image
imagecopyresampled($dst_img, $src_img, 0, 0, 0, $h_point, $max_width, $max_height, $width, $height_new);
}else{
//cut point by width
$w_point = (($width - $width_new) / 2);
imagecopyresampled($dst_img, $src_img, 0, 0, $w_point, 0, $max_width, $max_height, $width_new, $height);
}
$image($dst_img, $dst_dir, $quality);
if($dst_img)imagedestroy($dst_img);
if($src_img)imagedestroy($src_img);
}
?>

Answer 1

You could use this library: flutter_native_image for resizing/croping your images.
Important to take a look at the other parameters of this function, you can probably customize the way the image will be cropped.
Something like that:
ImageProperties properties = await FlutterNativeImage.getImageProperties(file.path);
File croppedFile = await FlutterNativeImage.cropImage(file.path, originX, originY, 500, 500);
originX/originY: x/y position for the cut.