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| Current Path : /home/thenclexdoctor.com/public_html/vendor/meyfa/php-svg/src/ |
| Current File : /home/thenclexdoctor.com/public_html/vendor/meyfa/php-svg/src/SVG.php |
<?php
namespace SVG;
use SVG\Nodes\Structures\SVGDocumentFragment;
use SVG\Rasterization\SVGRasterizer;
use SVG\Reading\SVGReader;
use SVG\Writing\SVGWriter;
/**
* This is the main class for any SVG image, as it hosts the document root and
* offers conversion methods.
*/
class SVG
{
/** @var SVGReader $reader The singleton reader used by this class. */
private static $reader;
/** @var SVGDocumentFragment $document This image's root `svg` node/tag. */
private $document;
/**
* @param string $width The image's width (any CSS length).
* @param string $height The image's height (any CSS length).
* @param string[] $namespaces An optional array of additional namespaces.
*/
public function __construct($width, $height, array $namespaces = array())
{
$this->document = new SVGDocumentFragment($width, $height, $namespaces);
}
/**
* @return SVGDocumentFragment The document/root node of this image.
*/
public function getDocument()
{
return $this->document;
}
/**
* Converts this image into a rasterized GD resource of the given size.
*
* The resulting image resource supports transparency and represents the
* SVG as accurately as possible (with PHP's limited imaging functions).
* Note that, since images in SVG have an innate size, the given size only
* scales the output canvas and does not influence element positions.
*
* @param int $width The target canvas's width, in pixels.
* @param int $height The target canvas's height, in pixels.
*
* @return resource The rasterized image as a GD resource (with alpha).
*/
public function toRasterImage($width, $height)
{
$docWidth = $this->document->getWidth();
$docHeight = $this->document->getHeight();
$viewBox = $this->document->getViewBox();
$rasterizer = new SVGRasterizer($docWidth, $docHeight, $viewBox, $width, $height);
$this->document->rasterize($rasterizer);
return $rasterizer->finish();
}
/**
* @see SVG::toXMLString() For the implementation (this is a wrapper).
*/
public function __toString()
{
return $this->toXMLString();
}
/**
* Converts this image's document tree into an XML source code string.
*
* Note that an image parsed from an XML string might not have the exact
* same XML string generated by this method, since the output is optimized
* and formatted according to specific rules.
*
* @param bool $standalone optional, false omits the leading <?xml tag
*
* @return string This image's document tree as an XML string.
*/
public function toXMLString($standalone = true)
{
$writer = new SVGWriter($standalone);
$writer->writeNode($this->document);
return $writer->getString();
}
/**
* Parses the given XML string into an instance of this class.
*
* @param string $string The XML string to parse.
*
* @return SVG A new image, with the nodes parsed from the XML.
*/
public static function fromString($string)
{
return self::getReader()->parseString($string);
}
/**
* Reads the file at the given path as an XML string, and then parses it
* into an instance of this class.
*
* @param string $file The path to the file to parse.
*
* @return SVG A new image, with the nodes parsed from the XML.
*/
public static function fromFile($file)
{
return self::getReader()->parseFile($file);
}
/**
* @return SVGReader The singleton reader shared across all instances.
*/
private static function getReader()
{
if (!isset(self::$reader)) {
self::$reader = new SVGReader();
}
return self::$reader;
}
}
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