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<?php
declare(strict_types=1);
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Core\Imaging;
use TYPO3\CMS\Core\Imaging\Exception\ZeroImageDimensionException;
use TYPO3\CMS\Core\Imaging\ImageManipulation\Area;
use TYPO3\CMS\Core\Resource\ProcessedFile;
use TYPO3\CMS\Core\Resource\Processing\LocalPreviewHelper;
use TYPO3\CMS\Core\Resource\Processing\TaskInterface;
use TYPO3\CMS\Core\Utility\GeneralUtility;
/**
* Representing an image dimension (width and height)
* and calculating the dimension from a source with a given processing instruction
*/
class ImageDimension
{
/**
* @var int
*/
private $width;
/**
* @var int
*/
private $height;
public function __construct(int $width, int $height)
{
$this->width = $width;
$this->height = $height;
}
public function getWidth(): int
{
return $this->width;
}
public function getHeight(): int
{
return $this->height;
}
public static function fromProcessingTask(TaskInterface $task): self
{
$config = self::getConfigurationForImageCropScaleMask($task);
$processedFile = $task->getTargetFile();
$isCropped = false;
if (($config['crop'] ?? null) instanceof Area) {
$isCropped = true;
$imageDimension = new self(
(int)round($config['crop']->getWidth()),
(int)round($config['crop']->getHeight())
);
} else {
$imageDimension = new self(
(int)$processedFile->getOriginalFile()->getProperty('width'),
(int)$processedFile->getOriginalFile()->getProperty('height')
);
}
if ($imageDimension->width <= 0 || $imageDimension->height <= 0) {
throw new ZeroImageDimensionException('Width and height of the image must be greater than zero.', 1597310560);
}
$result = GeneralUtility::makeInstance(GraphicalFunctions::class)->getImageScale(
[
$imageDimension->width,
$imageDimension->height,
$processedFile->getExtension(),
],
(string)($config['width'] ?? ''),
(string)($config['height'] ?? ''),
$config
);
$imageWidth = $geometryWidth = (int)$result[0];
$imageHeight = $geometryHeight = (int)$result[1];
$isCropScaled = $result['crs'];
if ($isCropScaled) {
$cropWidth = (int)$result['origW'];
$cropHeight = (int)$result['origH'];
// If the image is crop scaled, use the dimension of the crop
// unless crop area exceeds the dimension of the scaled image
if ($cropWidth <= $geometryWidth && $cropHeight <= $geometryHeight) {
$imageWidth = $cropWidth;
$imageHeight = $cropHeight;
}
if (!$isCropped && $task->getTargetFileExtension() === 'svg') {
// Keep aspect ratio of SVG files, when crop-scaling is requested
// but no crop is applied
if ($geometryWidth > $geometryHeight) {
$imageHeight = (int)round($imageWidth * $geometryHeight / $geometryWidth);
} else {
$imageWidth = (int)round($imageHeight * $geometryWidth / $geometryHeight);
}
}
}
$imageDimension->width = $imageWidth;
$imageDimension->height = $imageHeight;
return $imageDimension;
}
private static function getConfigurationForImageCropScaleMask(TaskInterface $task): array
{
$configuration = $task->getConfiguration();
if ($task->getTargetFile()->getTaskIdentifier() === ProcessedFile::CONTEXT_IMAGEPREVIEW) {
$configuration = LocalPreviewHelper::preProcessConfiguration($configuration);
$configuration['maxWidth'] = $configuration['width'];
unset($configuration['width']);
$configuration['maxHeight'] = $configuration['height'];
unset($configuration['height']);
}
$options = $configuration;
if ($configuration['maxWidth'] ?? null) {
$options['maxW'] = $configuration['maxWidth'];
}
if ($configuration['maxHeight'] ?? null) {
$options['maxH'] = $configuration['maxHeight'];
}
if ($configuration['minWidth'] ?? null) {
$options['minW'] = $configuration['minWidth'];
}
if ($configuration['minHeight'] ?? null) {
$options['minH'] = $configuration['minHeight'];
}
if ($configuration['crop'] ?? null) {
$options['crop'] = $configuration['crop'];
if (is_string($configuration['crop'])) {
// check if it is a json object
$cropData = json_decode($configuration['crop']);
if ($cropData) {
$options['crop'] = new Area((float)$cropData->x, (float)$cropData->y, (float)$cropData->width, (float)$cropData->height);
} else {
[$offsetLeft, $offsetTop, $newWidth, $newHeight] = explode(',', $configuration['crop'], 4);
$options['crop'] = new Area((float)$offsetLeft, (float)$offsetTop, (float)$newWidth, (float)$newHeight);
}
if ($options['crop']->isEmpty()) {
unset($options['crop']);
}
}
}
if ($configuration['noScale'] ?? null) {
$options['noScale'] = $configuration['noScale'];
}
return $options;
}
}