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<?php |
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/** |
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* Class QRMarkup |
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* |
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* @created 17.12.2016 |
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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\Data\QRMatrix; |
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use chillerlan\QRCode\QRCode; |
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use function implode, is_string, ksort, sprintf, strip_tags, trim; |
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/** |
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* Converts the matrix into markup types: HTML, SVG, ... |
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*/ |
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class QRMarkup extends QROutputAbstract{ |
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protected string $defaultMode = QRCode::OUTPUT_MARKUP_SVG; |
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/** |
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* @inheritDoc |
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*/ |
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protected function moduleValueIsValid($value):bool{ |
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return is_string($value); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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protected function getModuleValue($value):string{ |
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return trim(strip_tags($value), " '\"\r\n\t"); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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protected function getDefaultModuleValue(bool $isDark):string{ |
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return $isDark ? $this->options->markupDark : $this->options->markupLight; |
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} |
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/** |
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* HTML output |
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*/ |
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protected function html(string $file = null):string{ |
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$html = empty($this->options->cssClass) |
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? '<div>' |
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: sprintf('<div class="%s">', $this->options->cssClass); |
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$html .= $this->options->eol; |
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foreach($this->matrix->matrix() as $row){ |
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$html .= '<div>'; |
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foreach($row as $M_TYPE){ |
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$html .= sprintf('<span style="background: %s;"></span>', $this->moduleValues[$M_TYPE]); |
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} |
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$html .= '</div>'.$this->options->eol; |
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} |
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$html .= '</div>'.$this->options->eol; |
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if($file !== null){ |
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return sprintf( |
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'<!DOCTYPE html><head><meta charset="UTF-8"><title>QR Code</title></head><body>%s</body>', |
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$this->options->eol.$html |
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); |
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} |
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return $html; |
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} |
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/** |
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* SVG output |
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* |
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* @see https://github.com/codemasher/php-qrcode/pull/5 |
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* @see https://developer.mozilla.org/en-US/docs/Web/SVG/Element/svg |
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* @see https://www.sarasoueidan.com/demos/interactive-svg-coordinate-system/ |
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*/ |
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protected function svg(string $file = null):string{ |
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$svg = $this->svgHeader(); |
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if(!empty($this->options->svgDefs)){ |
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$svg .= sprintf('<defs>%1$s%2$s</defs>%2$s', $this->options->svgDefs, $this->options->eol); |
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} |
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$svg .= $this->svgPaths(); |
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// close svg |
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$svg .= sprintf('%1$s</svg>%1$s', $this->options->eol); |
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// transform to data URI only when not saving to file |
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if($file === null && $this->options->imageBase64){ |
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$svg = $this->base64encode($svg, 'image/svg+xml'); |
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} |
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return $svg; |
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} |
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/** |
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* returns the <svg> header with the given options parsed |
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*/ |
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protected function svgHeader():string{ |
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$width = $this->options->svgWidth !== null ? sprintf(' width="%s"', $this->options->svgWidth) : ''; |
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$height = $this->options->svgHeight !== null ? sprintf(' height="%s"', $this->options->svgHeight) : ''; |
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/** @noinspection HtmlUnknownAttribute */ |
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return sprintf( |
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'<?xml version="1.0" encoding="UTF-8"?>%6$s'. |
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'<svg xmlns="http://www.w3.org/2000/svg" class="qr-svg %1$s" viewBox="0 0 %2$s %2$s" preserveAspectRatio="%3$s"%4$s%5$s>%6$s', |
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$this->options->cssClass, |
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$this->options->svgViewBoxSize ?? $this->moduleCount, |
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$this->options->svgPreserveAspectRatio, |
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$width, |
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$height, |
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$this->options->eol |
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); |
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} |
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/** |
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* returns one or more SVG <path> elements |
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* |
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* @see https://developer.mozilla.org/en-US/docs/Web/SVG/Element/path |
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*/ |
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protected function svgPaths():string{ |
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$paths = []; |
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// collect the modules for each type |
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foreach($this->matrix->matrix() as $y => $row){ |
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foreach($row as $x => $M_TYPE){ |
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if($this->options->svgConnectPaths && !$this->matrix->checkTypes($x, $y, $this->options->svgExcludeFromConnect)){ |
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// to connect paths we'll redeclare the $M_TYPE to data only |
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$M_TYPE = QRMatrix::M_DATA; |
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if($this->matrix->check($x, $y)){ |
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$M_TYPE |= QRMatrix::IS_DARK; |
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} |
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} |
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// collect the modules per $M_TYPE |
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$paths[$M_TYPE][] = $this->svgModule($x, $y); |
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} |
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} |
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// beautify output |
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ksort($paths); |
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$svg = []; |
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// create the path elements |
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foreach($paths as $M_TYPE => $path){ |
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$path = trim(implode(' ', $path)); |
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if(empty($path)){ |
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continue; |
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} |
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$cssClass = implode(' ', [ |
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'qr-'.$M_TYPE, |
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($M_TYPE & QRMatrix::IS_DARK) === QRMatrix::IS_DARK ? 'dark' : 'light', |
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$this->options->cssClass, |
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]); |
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$format = empty($this->moduleValues[$M_TYPE]) |
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? '<path class="%1$s" d="%2$s"/>' |
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: '<path class="%1$s" fill="%3$s" fill-opacity="%4$s" d="%2$s"/>'; |
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$svg[] = sprintf($format, $cssClass, $path, $this->moduleValues[$M_TYPE], $this->options->svgOpacity); |
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} |
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return implode($this->options->eol, $svg); |
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} |
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/** |
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* returns a path segment for a single module |
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* |
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* @see https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/d |
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*/ |
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protected function svgModule(int $x, int $y):string{ |
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if($this->options->imageTransparent && !$this->matrix->check($x, $y)){ |
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return ''; |
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} |
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if($this->options->drawCircularModules && !$this->matrix->checkTypes($x, $y, $this->options->keepAsSquare)){ |
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$r = $this->options->circleRadius; |
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return sprintf( |
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'M%1$s %2$s a%3$s %3$s 0 1 0 %4$s 0 a%3$s,%3$s 0 1 0 -%4$s 0Z', |
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($x + 0.5 - $r), |
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($y + 0.5), |
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$r, |
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($r * 2) |
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); |
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} |
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return sprintf('M%1$s %2$s h%3$s v1 h-%4$sZ', $x, $y, 1, 1); |
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} |
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} |
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