core-bundle/src/Resources/contao/library/Contao/Image.php
protected function prepareResizeConfig()
	{
		$resizeConfig = new ResizeConfiguration();
		$resizeConfig->setWidth($this->targetWidth);
		$resizeConfig->setHeight($this->targetHeight);
		$resizeConfig->setZoomLevel($this->zoomLevel);

		if (substr_count($this->resizeMode, '_') === 1)
		{
			$resizeConfig->setMode(ResizeConfiguration::MODE_CROP);
			$resizeConfig->setZoomLevel(0);
		}
		else
		{
			try
			{
				$resizeConfig->setMode($this->resizeMode);
			}
			catch (\InvalidArgumentException $exception)
			{
				$resizeConfig->setMode(ResizeConfiguration::MODE_CROP);
			}
		}

		return $resizeConfig;
	}
protected function prepareResizeConfig()
	{
		$resizeConfig = new ResizeConfiguration();
		$resizeConfig->setWidth($this->targetWidth);
		$resizeConfig->setHeight($this->targetHeight);
		$resizeConfig->setZoomLevel($this->zoomLevel);

		if (substr_count($this->resizeMode, '_') === 1)
		{
			$resizeConfig->setMode(ResizeConfiguration::MODE_CROP);
			$resizeConfig->setZoomLevel(0);
		}
		else
		{
			try
			{
				$resizeConfig->setMode($this->resizeMode);
			}
			catch (\InvalidArgumentException $exception)
			{
				$resizeConfig->setMode(ResizeConfiguration::MODE_CROP);
			}
		}

		return $resizeConfig;
	}
Prepare resize configuration object.

@return ResizeConfiguration