protected function getTransformation(AbstractFileEntity $entity, $file, $width, $height, $mode, $optimize)
{
$transformation = new \Imagine\Filter\Transformation();
if ($optimize) {
// Optimize for web and rotate the images (after thumbnail creation).
$transformation->add(new \Imagine\Filter\Basic\Autorotate(), 101)->add(new \Imagine\Filter\Basic\WebOptimization(), 2);
}
$watermark = $entity->getCollection()->getWatermark();
if ($watermark === null) {
// The image shall not be watermarked.
return $transformation;
}
$imagine = $this->imagineManager->getImagine();
// Check whether the image is big enough to be watermarked.
if ($watermark->getMinSizeX() !== null && $width < $watermark->getMinSizeX()) {
return $transformation;
}
if ($watermark->getMinSizeY() !== null && $height < $watermark->getMinSizeY()) {
return $transformation;
}
// Generate the watermark image. It will already be correctly sized
// for the thumbnail.
if ($mode == 'outbound') {
$wWidth = $width;
$wHeight = $height;
} elseif ($mode == 'inset') {
$imageSize = getimagesize($file);
$ratios = [$width / $imageSize[0], $height / $imageSize[1]];
$wWidth = min($ratios) * $imageSize[0];
$wHeight = min($ratios) * $imageSize[1];
} else {
throw new \LogicException();
}
$watermarkImage = $watermark->getImagineImage($imagine, $this->fontCollection, $wWidth, $wHeight);
$watermarkSize = $watermarkImage->getSize();
// Calculate watermark position. If the position is negative, handle
// it as an offset from the bottom / the right side of the image.
$x = $watermark->getPositionX();
$y = $watermark->getPositionY();
if ($x < 0) {
$x += $wWidth - $watermarkSize->getWidth();
}
if ($y < 0) {
$y += $wHeight - $watermarkSize->getHeight();
}
// If the watermark still exceeds the image's width or height, do
// not watermark the image.
// @todo Probably resize watermark instead?
if ($x < 0 || $y < 0 || $x + $watermarkSize->getWidth() > $wWidth || $y + $watermarkSize->getHeight() > $wHeight) {
return $transformation;
}
$point = new \Imagine\Image\Point($x, $y);
$transformation->add(new \Imagine\Filter\Basic\Paste($watermarkImage, $point), 100);
return $transformation;
}
