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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\Writer; |
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use Bacon\Pdf\Rectangle; |
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use DomainException; |
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class PageWriter |
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{ |
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/** |
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* @var ObjectWriter |
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*/ |
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private $objectWriter; |
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/** |
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* @var int |
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*/ |
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private $pageId; |
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/** |
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* @var Rectangle[] |
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*/ |
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private $boxes = []; |
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/** |
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* @var int|null |
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*/ |
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private $rotation; |
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/** |
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* @var string |
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*/ |
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private $contentStream = ''; |
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/** |
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* @param ObjectWriter $objectWriter |
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*/ |
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public function __construct(ObjectWriter $objectWriter) |
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{ |
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$this->objectWriter = $objectWriter; |
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$this->pageId = $this->objectWriter->allocateObjectId(); |
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} |
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/** |
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* Sets a box for the page. |
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* |
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* @param string $name |
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* @param Rectangle $box |
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*/ |
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public function setBox($name, Rectangle $box) |
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{ |
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$this->boxes[$name] = $box; |
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} |
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/** |
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* Sets the rotation of the page. |
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* |
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* @param int $degrees |
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* @throws DomainException |
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*/ |
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public function setRotation($degrees) |
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{ |
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if (!in_array($degrees, [0, 90, 180, 270])) { |
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throw new DomainException('Degrees value must be a multiple of 90'); |
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} |
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$this->rotation = $degrees; |
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} |
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/** |
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* Appends data to the content stream. |
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* |
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* @param string $data |
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*/ |
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public function appendContentStream($data) |
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{ |
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$this->contentStream .= $data; |
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} |
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/** |
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* Writes the page contents and definition to the writer. |
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* |
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* @param ObjectWriter $objectWriter |
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* @param int $pageTreeId |
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* @return int |
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*/ |
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public function writePage(ObjectWriter $objectWriter, $pageTreeId) |
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{ |
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$objectWriter->startObject($this->pageId); |
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$objectWriter->startDictionary(); |
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$objectWriter->writeName('Type'); |
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$objectWriter->writeName('Page'); |
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$objectWriter->writeName('Parent'); |
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$objectWriter->writeIndirectReference($pageTreeId); |
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$objectWriter->writeName('Resources'); |
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$objectWriter->startDictionary(); |
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$objectWriter->endDictionary(); |
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$objectWriter->writeName('Contents'); |
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$objectWriter->startArray(); |
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$objectWriter->endArray(); |
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foreach ($this->boxes as $name => $box) { |
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$objectWriter->writeName($name); |
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$box->writeRectangleArray($objectWriter); |
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} |
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if (null !== $this->rotation) { |
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$objectWriter->writeName('Rotate'); |
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$objectWriter->writeNumber($this->rotation); |
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} |
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$objectWriter->endDictionary(); |
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$objectWriter->endObject(); |
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return $this->pageId; |
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} |
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} |
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Bacon /
BaconPdf
