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<?php |
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/** |
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* BaconPdf |
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* |
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* @link http://github.com/Bacon/BaconPdf For the canonical source repository |
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* @copyright 2015 Ben Scholzen (DASPRiD) |
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* @license http://opensource.org/licenses/BSD-2-Clause Simplified BSD License |
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*/ |
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namespace Bacon\Pdf; |
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use Bacon\Pdf\Exception\DomainException; |
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use Bacon\Pdf\Exception\UnexpectedValueException; |
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use Bacon\Pdf\Object\LiteralStringObject; |
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use Bacon\Pdf\Object\NameObject; |
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use Bacon\Pdf\Type\DateType; |
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use DateTimeImmutable; |
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use OutOfBoundsException; |
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final class DocumentInformation |
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{ |
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/** |
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* @var array |
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*/ |
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private $data = ['Producer' => 'BaconPdf']; |
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/** |
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* Sets an entry in the information dictionary. |
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* |
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* The CreationData and ModDate values are restricted for internal use, so trying to set them will trigger an |
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* exception. Setting the "Trapped" value is allowed, but it must be one of the values "True", "False" or "Unknown". |
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* You can set any key in here, but the following are the standard keys recognized by the PDF standard. Keep in mind |
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* that the keys are case-sensitive: |
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* |
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* Title, Author, Subject, Keywords, Creator, Producer and Trapped. |
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* |
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* @param string $key |
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* @param string $value |
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* @throws DomainException |
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*/ |
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public function set($key, $value) |
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{ |
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if ('CreationDate' === $key || 'ModDate' === $key) { |
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throw new DomainException('CreationDate and ModDate must not be set manually'); |
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} |
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if ('Trapped' === $key) { |
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if (!in_array($value, ['True', 'False', 'Unknown'])) { |
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throw new DomainException('Value for "Trapped" must be either "True", "False" or "Unknown"'); |
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} |
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$this->data['Trapped'] = $value; |
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return; |
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} |
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$this->data[$key] = $value; |
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} |
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/** |
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* Removes an entry from the information dictionary. |
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* |
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* @param string $key |
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*/ |
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public function remove($key) |
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{ |
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unset($this->data[$key]); |
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} |
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/** |
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* Checks whether an entry exists in the information dictionary. |
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* |
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* @param string $key |
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* @return bool |
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*/ |
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public function has($key) |
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{ |
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return array_key_exists($key, $this->data); |
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} |
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/** |
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* Retrieves the value for a specific entry in the information dictionary. |
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* |
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* You may retrieve any entry from the information dictionary through this method, except for "CreationData" and |
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* "ModDate". Those two entries have their own respective methods to be retrieved. |
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* |
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* @param string $key |
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* @return string |
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* @throws DomainException |
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* @throws OutOfBoundsException |
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*/ |
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public function get($key) |
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{ |
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if ('CreationDate' === $key || 'ModDate' === $key) { |
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throw new DomainException('CreationDate and ModDate must be retrieved through their respective methods'); |
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} |
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if (!array_key_exists($key, $this->data)) { |
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throw new OutOfBoundsException(sprintf('Entry for key "%s" not found', $key)); |
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} |
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return $this->data[$key]; |
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} |
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/** |
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* @return DateTimeImmutable |
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*/ |
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public function getCreationDate() |
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{ |
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return $this->retrieveDate('CreationDate'); |
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} |
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/** |
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* @return DateTimeImmutable |
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*/ |
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public function getModificationDate() |
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{ |
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return $this->retrieveDate('ModDate'); |
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} |
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/** |
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* @param string $key |
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* @return DateTimeImmutable |
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* @throws OutOfBoundsException |
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*/ |
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private function retrieveDate($key) |
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{ |
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if (!array_key_exists($key, $this->data)) { |
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throw new OutOfBoundsException(sprintf('Entry for key "%s" not found', $key)); |
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} |
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return $this->data[$key]; |
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} |
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} |
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Bacon /
BaconPdf
