blue-twilight/app/Helpers/ImageHelper.php

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<?php
namespace App\Helpers;
use App\AlbumSources\IAlbumSource;
use App\Photo;
class ImageHelper
{
public function generateThumbnail(
$gdImageResource,
Photo $photo,
IAlbumSource $storage,
$thumbnailInfo
)
{
$thumbnailWidth = intval($thumbnailInfo['width']);
$thumbnailHeight = intval($thumbnailInfo['height']);
$thumbnailImageResource = imagecreatetruecolor($thumbnailWidth, $thumbnailHeight);
imagecopyresized(
$thumbnailImageResource,
$gdImageResource,
0,
0,
0,
0,
$thumbnailWidth,
$thumbnailHeight,
$photo->width,
$photo->height
);
$tempName = tempnam('/tmp', 'blue_twilight_thumbnail_');
rename($tempName, $tempName . '.jpg');
// TODO make thumbnail quality configurable
imagejpeg($thumbnailImageResource, $tempName . '.jpg', 90);
}
public function openImage($imagePath, &$imageInfo)
{
$imageInfo = getimagesize($imagePath);
$im = false;
$type = $imageInfo[2];
$allowedTypes = [
IMG_GIF,
IMG_PNG,
IMG_JPEG,
IMG_WBMP
];
if (!in_array($type, $allowedTypes))
{
return false;
}
switch ($type)
{
case IMG_GIF:
$im = imagecreatefromgif($imagePath);
break;
case IMG_JPEG:
$im = imagecreatefromjpeg($imagePath);
break;
case IMG_PNG:
$im = imagecreatefrompng($imagePath);
break;
case IMG_WBMP:
$im = imagecreatefromwbmp($imagePath);
break;
}
return $im;
}
}