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<?php |
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/** |
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* Class QRMarkup |
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* |
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* @filesource QRMarkup.php |
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* @created 17.12.2016 |
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* @package chillerlan\QRCode\Output |
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* @author Smiley <[email protected]> |
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* @copyright 2016 Smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\QRCode\Output; |
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use chillerlan\QRCode\QRCode; |
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/** |
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* |
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*/ |
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class QRMarkup extends QROutputAbstract{ |
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/** |
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* @var string |
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*/ |
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protected $optionsInterface = QRMarkupOptions::class; |
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/** |
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* @var array |
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*/ |
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protected $types = [ |
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QRCode::OUTPUT_MARKUP_HTML, |
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QRCode::OUTPUT_MARKUP_SVG, |
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]; |
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/** |
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* @return string |
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*/ |
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public function dump(){ |
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switch($this->options->type){ |
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case QRCode::OUTPUT_MARKUP_SVG : return $this->toSVG(); |
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case QRCode::OUTPUT_MARKUP_HTML: |
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default: |
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return $this->toHTML(); |
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} |
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} |
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/** |
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* @return string |
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*/ |
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protected function toHTML(){ |
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$html = ''; |
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foreach($this->matrix as $row){ |
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// in order to not bloat the output too much, we use the shortest possible valid HTML tags |
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$html .= '<'.$this->options->htmlRowTag.'>'; |
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foreach($row as $col){ |
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$tag = $col |
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? 'b' // dark |
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: 'i'; // light |
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$html .= '<'.$tag.'></'.$tag.'>'; |
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} |
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if(!(bool)$this->options->htmlOmitEndTag){ |
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$html .= '</'.$this->options->htmlRowTag.'>'; |
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} |
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$html .= $this->options->eol; |
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} |
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return $html; |
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} |
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/** |
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* @return string |
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* @throws \chillerlan\QRCode\Output\QRCodeOutputException |
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*/ |
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protected function toSVG(){ |
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$length = $this->pixelCount * $this->options->pixelSize + $this->options->marginSize * 2; |
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$class = !empty($this->options->cssClass) ? $this->options->cssClass : hash('crc32', microtime(true)); |
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// svg header |
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$svg = '<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="'.$length.'" height="'.$length.'" viewBox="0 0 '.$length.' '.$length.'" style="background-color:'.$this->options->bgColor.'">'.$this->options->eol. |
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'<defs><style>.'.$class.'{fill:'.$this->options->fgColor.'} rect{shape-rendering:crispEdges}</style></defs>'.$this->options->eol; |
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// svg body |
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foreach($this->matrix as $r => $row){ |
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//we'll combine active blocks within a single row as a lightweight compression technique |
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$from = -1; |
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$count = 0; |
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foreach($row as $c => $pixel){ |
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if($pixel){ |
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$count++; |
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if($from < 0){ |
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$from = $c; |
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} |
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} |
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elseif($from >= 0){ |
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$svg .= '<rect x="'.($from * $this->options->pixelSize + $this->options->marginSize).'" y="'.($r * $this->options->pixelSize + $this->options->marginSize) |
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.'" width="'.($this->options->pixelSize * $count).'" height="'.$this->options->pixelSize.'" class="'.$class.'" />'.$this->options->eol; |
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// reset count |
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$from = -1; |
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$count = 0; |
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} |
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} |
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// close off the row, if applicable |
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if($from >= 0){ |
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$svg .= '<rect x="'.($from * $this->options->pixelSize + $this->options->marginSize).'" y="'.($r * $this->options->pixelSize + $this->options->marginSize) |
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.'" width="'.($this->options->pixelSize * $count).'" height="'.$this->options->pixelSize.'" class="'.$class.'" />'.$this->options->eol; |
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} |
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} |
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// close svg |
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$svg .= '</svg>'.$this->options->eol; |
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// if saving to file, append the correct headers |
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if($this->options->cachefile){ |
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$svg = '<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">'.$this->options->eol.$svg; |
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if(@file_put_contents($this->options->cachefile, $svg) === false){ |
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throw new QRCodeOutputException('Could not write to cache file.'); // @codeCoverageIgnore |
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} |
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} |
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return $svg; |
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} |
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} |
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As per the PSR-2 coding standard, there must not be a space in front of the colon in case statements.
To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.