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<?php |
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/** |
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* @package dompdf |
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* @link https://github.com/dompdf/dompdf |
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* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License |
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*/ |
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namespace Dompdf; |
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|
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/** |
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* Create canvas instances |
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* |
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* The canvas factory creates canvas instances based on the |
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* availability of rendering backends and config options. |
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* |
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* @package dompdf |
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*/ |
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class CanvasFactory |
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{ |
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/** |
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* Constructor is private: this is a static class |
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*/ |
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private function __construct() |
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{ |
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} |
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|
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/** |
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* @param Dompdf $dompdf |
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* @param string|array $paper |
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* @param string $orientation |
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* @param string $class |
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* |
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* @return Canvas |
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*/ |
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static function get_instance(Dompdf $dompdf, $paper = null, $orientation = null, $class = null) |
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{ |
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$backend = strtolower($dompdf->getOptions()->getPdfBackend()); |
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|
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if (isset($class) && class_exists($class, false)) { |
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$class .= "_Adapter"; |
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} else { |
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if (($backend === "auto" || $backend === "pdflib") && |
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class_exists("PDFLib", false) |
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) { |
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$class = "Dompdf\\Adapter\\PDFLib"; |
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} |
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|
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else { |
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if ($backend === "gd" && extension_loaded('gd')) { |
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$class = "Dompdf\\Adapter\\GD"; |
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} else { |
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$class = "Dompdf\\Adapter\\CPDF"; |
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} |
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} |
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} |
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|
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return new $class($paper, $orientation, $dompdf); |
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} |
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} |
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|
