/** Usage example: {{ product.image | transparencyThumb(180,180, {color: [255,0,0]}) }}
* @param File $originalImage
* @param $width
* @param $height
* @param array $opts
* @return string
*/
public function transparencyThumb($originalImage, $width, $height, $opts = [])
{
if ($originalImage == null) {
return null;
}
$extension = $originalImage->getAttribute('extension');
if ($extension == 'png' || $extension == 'gif') {
if (isset($opts['color']) == false) {
$opts['color'] = [255, 255, 255];
}
$appendix = '_trans_tmp_' . implode('-', $opts['color']) . '.jpg';
$dbDiskName = str_replace('.' . $extension, $appendix, $originalImage->getAttribute('file_name'));
$dbAttachmentType = $originalImage->getAttribute('attachment_type') . '::transparency';
$dbFile = File::where('file_name', $dbDiskName)->where('attachment_type', $dbAttachmentType)->first();
if ($dbFile) {
return $dbFile->getThumb($width, $height, $opts);
}
if ($extension == 'png') {
$tmpImageData = imagecreatefrompng(base_path() . $originalImage->getPath());
} else {
$tmpImageData = imagecreatefromgif(base_path() . $originalImage->getPath());
}
$imageWidth = imagesx($tmpImageData);
$imageHeight = imagesy($tmpImageData);
$backgroundImg = imagecreatetruecolor($imageWidth, $imageHeight);
$color = imagecolorallocate($backgroundImg, $opts['color'][0], $opts['color'][1], $opts['color'][2]);
imagefill($backgroundImg, 0, 0, $color);
imagecopy($backgroundImg, $tmpImageData, 0, 0, 0, 0, $imageWidth, $imageHeight);
$tmpImagePath = $originalImage->getTempPath() . '/' . $dbDiskName;
imagejpeg($backgroundImg, $tmpImagePath);
imagedestroy($backgroundImg);
imagedestroy($tmpImageData);
//return str_replace(base_path(), '', $tmpImagePath);
$file = File::create(['data' => $tmpImagePath, 'attachment_type' => $dbAttachmentType]);
return $file->getThumb($width, $height, $opts);
}
return $originalImage->getThumb($width, $height, $opts);
}
