mirror of
https://github.com/chillerlan/php-qrcode.git
synced 2026-08-17 18:53:34 +00:00
smiley
301 lines
10 KiB
PHP
301 lines
10 KiB
PHP
<?php
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/**
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* "melted" modules example
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*
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* This code generates an SVG QR code with rounded corners. It uses a round rect for each square and then additional
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* paths to fill in the gap where squares are next to each other. Adjacent squares overlap - to almost completely
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* eliminate hairline antialias "cracks" that tend to appear when two SVG paths are exactly adjacent to each other.
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*
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* @see https://github.com/chillerlan/php-qrcode/issues/127
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* @see ./shapes.svg
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*/
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declare(strict_types=1);
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use chillerlan\QRCode\{QRCode, QROptions};
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use chillerlan\QRCode\Common\EccLevel;
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use chillerlan\QRCode\Data\QRMatrix;
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use chillerlan\QRCode\Output\QRMarkupSVG;
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require_once __DIR__.'/../vendor/autoload.php';
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/*
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* Class definition
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*/
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/**
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* the extended SVG output module
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*/
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class MeltedSVGQRCodeOutput extends QRMarkupSVG{
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protected function path(string $path, int $M_TYPE):string{
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// omit the "fill" and "opacity" attributes on the path element
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return sprintf('<path class="%s" d="%s"/>', $this->getCssClass($M_TYPE), $path);
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}
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protected function collectModules():array{
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$paths = [];
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$melt = $this->options->melt; // avoid magic getter in long loops
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// collect the modules for each type
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foreach($this->matrix->matrix as $y => $row){
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foreach($row as $x => $M_TYPE){
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$M_TYPE_LAYER = $M_TYPE;
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if($this->connectPaths && !$this->matrix->checkTypeIn($x, $y, $this->excludeFromConnect)){
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// to connect paths we'll redeclare the $M_TYPE_LAYER to data only
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$M_TYPE_LAYER = QRMatrix::M_DATA;
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if($this->matrix->isDark($M_TYPE)){
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$M_TYPE_LAYER = QRMatrix::M_DATA_DARK;
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}
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}
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// if we're going to "melt" the matrix, we'll declare *all* modules as dark,
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// so that light modules with dark parts are rendered in the same path
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if($melt){
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$M_TYPE_LAYER |= QRMatrix::IS_DARK;
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}
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// collect the modules per $M_TYPE
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$module = $this->moduleTransform($x, $y, $M_TYPE, $M_TYPE_LAYER);
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if($module !== null){
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$paths[$M_TYPE_LAYER][] = $module;
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}
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}
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}
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// beautify output
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ksort($paths);
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return $paths;
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}
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protected function moduleTransform(int $x, int $y, int $M_TYPE, int $M_TYPE_LAYER):string|null{
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$bits = $this->matrix->checkNeighbours($x, $y, null);
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$check = fn(int $all, int $any = 0):bool => ($bits & ($all | (~$any & 0xff))) === $all;
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$template = ($M_TYPE & QRMatrix::IS_DARK) === QRMatrix::IS_DARK
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? $this->darkModule($check, $this->options->inverseMelt)
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: $this->lightModule($check, $this->options->inverseMelt);
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if($template === ''){
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return null;
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}
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$r = $this->options->meltRadius;
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return sprintf($template, $x, $y, $r, (1 - $r), (1 - 2 * $r));
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}
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/**
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* returns a dark module for the given values
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*/
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protected function darkModule(Closure $check, bool $invert):string{
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return match(true){
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// 4 rounded
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!$invert && $check(0b00000000, 0b01010101),
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$invert && $check(0b00000000, 0b00000000)
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=> 'M%1$s,%2$s m0,%3$s v%5$s q0,%3$s %3$s,%3$s h%5$s q%3$s,0 %3$s,-%3$s v-%5$s q0,-%3$s -%3$s,-%3$s h-%5$s q-%3$s,0 -%3$s,%3$sZ',
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// 3 rounded
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$invert && $check(0b01000000, 0b00000000) // 135
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=> 'M%1$s,%2$s m0,1 h%4$s q%3$s,0 %3$s,-%3$s v-%5$s q0,-%3$s -%3$s,-%3$s h-%5$s q-%3$s,0 -%3$s,%3$sZ',
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$invert && $check(0b00000001, 0b00000000) // 357
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=> 'M%1$s,%2$s v%4$s q0,%3$s %3$s,%3$s h%5$s q%3$s,0 %3$s,-%3$s v-%5$s q0,-%3$s -%3$s,-%3$sZ',
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$invert && $check(0b00000100, 0b00000000) // 571
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=> 'M%1$s,%2$s m1,0 v%4$s q0,%3$s -%3$s,%3$s h-%5$s q-%3$s,0 -%3$s,-%3$s v-%5$s q0,-%3$s %3$s,-%3$sZ',
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$invert && $check(0b00010000, 0b00000000) // 713
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=> 'M%1$s,%2$s m1,1 h-%4$s q-%3$s,0 -%3$s,-%3$s v-%5$s q0,-%3$s %3$s,-%3$s h%5$s q%3$s,0 %3$s,%3$sZ',
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// 2 rounded
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!$invert && $check(0b00100000, 0b01010101), // 13
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$invert && $check(0b00000000, 0b01110000)
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=> 'M%1$s,%2$s m0,1 h1 v-%4$s q0,-%3$s -%3$s,-%3$s h-%5$s q-%3$s,0 -%3$s,%3$sZ',
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!$invert && $check(0b10000000, 0b01010101), // 35
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$invert && $check(0b00000000, 0b11000001)
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=> 'M%1$s,%2$s v1 h%4$s q%3$s,0 %3$s,-%3$s v-%5$s q0,-%3$s -%3$s,-%3$sZ',
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!$invert && $check(0b00000010, 0b01010101), // 57
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$invert && $check(0b00000000, 0b00000111)
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=> 'M%1$s,%2$s v%4$s q0,%3$s %3$s,%3$s h%5$s q%3$s,0 %3$s,-%3$s v-%4$sZ',
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!$invert && $check(0b00001000, 0b01010101), // 71
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$invert && $check(0b00000000, 0b00011100)
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=> 'M%1$s,%2$s m1,1 v-1 h-%4$s q-%3$s,0 -%3$s,%3$s v%5$s q0,%3$s %3$s,%3$sZ',
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// diagonal
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$invert && $check(0b01000100, 0b00000000) // 15
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=> 'M%1$s,%2$s m0,1 h%4$s q%3$s,0 %3$s,-%3$s v-%4$s h-%4$s q-%3$s,0 -%3$s,%3$sZ',
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$invert && $check(0b00010001, 0b00000000) // 37
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=> 'M%1$s,%2$s h%4$s q%3$s,0 %3$s,%3$s v%4$s h-%4$s q-%3$s,0 -%3$s,-%3$sZ',
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// 1 rounded
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!$invert && $check(0b00101000, 0b01010101), // 1
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$invert && $check(0b00000000, 0b01111100)
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=> 'M%1$s,%2$s m0,1 h1 v-1 h-%4$s q-%3$s,0 -%3$s,%3$sZ',
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!$invert && $check(0b10100000, 0b01010101), // 3
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$invert && $check(0b00000000, 0b11110001)
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=> 'M%1$s,%2$s h%4$s q%3$s,0 %3$s,%3$s v%4$s h-1Z',
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!$invert && $check(0b10000010, 0b01010101), // 5
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$invert && $check(0b00000000, 0b11000111)
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=> 'M%1$s,%2$s h1 v%4$s q0,%3$s -%3$s,%3$s h-%4$sZ',
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!$invert && $check(0b00001010, 0b01010101), // 7
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$invert && $check(0b00000000, 0b00011111)
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=> 'M%1$s,%2$s v%4$s q0,%3$s %3$s,%3$s h%4$s v-1Z',
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// full square
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default
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=> 'M%1$s,%2$s h1 v1 h-1Z',
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};
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}
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/**
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* returns a light module for the given values
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*/
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protected function lightModule(Closure $check, bool $invert):string{
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return match(true){
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// 4 rounded
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!$invert && $check(0b11111111, 0b01010101),
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$invert && $check(0b10101010, 0b01010101)
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=> 'M%1$s,%2$s h%3$s q-%3$s,0 -%3$s,%3$sz m1,0 v%3$s q0,-%3$s -%3$s,-%3$sz m0,1 h-%3$s q%3$s,0 %3$s,-%3$sz m-1,0 v-%3$s q0,%3$s %3$s,%3$sZ',
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// 3 rounded
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!$invert && $check(0b10111111, 0b00000000) // 135
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=> 'M%1$s,%2$s h%3$s q-%3$s,0 -%3$s,%3$sz m1,0 v%3$s q0,-%3$s -%3$s,-%3$sz m0,1 h-%3$s q%3$s,0 %3$s,-%3$sZ',
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!$invert && $check(0b11111110, 0b00000000) // 357
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=> 'M%1$s,%2$s m1,0 v%3$s q0,-%3$s -%3$s,-%3$sz m0,1 h-%3$s q%3$s,0 %3$s,-%3$sz m-1,0 v-%3$s q0,%3$s %3$s,%3$sZ',
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!$invert && $check(0b11111011, 0b00000000) // 571
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=> 'M%1$s,%2$s h%3$s q-%3$s,0 -%3$s,%3$sz m0,1 v-%3$s q0,%3$s %3$s,%3$sz m1,0 h-%3$s q%3$s,0 %3$s,-%3$sZ',
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!$invert && $check(0b11101111, 0b00000000) // 713
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=> 'M%1$s,%2$s h%3$s q-%3$s,0 -%3$s,%3$sz m0,1 v-%3$s q0,%3$s %3$s,%3$sz m1,-1 v%3$s q0,-%3$s -%3$s,-%3$sZ',
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// 2 rounded
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!$invert && $check(0b10001111, 0b01110000), // 13
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$invert && $check(0b10001010, 0b01010101)
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=> 'M%1$s,%2$s h%3$s q-%3$s,0 -%3$s,%3$sz m1,0 v%3$s q0,-%3$s -%3$s,-%3$sZ',
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!$invert && $check(0b00111110, 0b11000001), // 35
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$invert && $check(0b00101010, 0b01010101)
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=> 'M%1$s,%2$s m1,0 v%3$s q0,-%3$s -%3$s,-%3$sz m0,1 h-%3$s q%3$s,0 %3$s,-%3$sZ',
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!$invert && $check(0b11111000, 0b00000111), // 57
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$invert && $check(0b10101000, 0b01010101)
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=> 'M%1$s,%2$s m1,1 h-%3$s q%3$s,0 %3$s,-%3$sz m-1,0 v-%3$s q0,%3$s %3$s,%3$sZ',
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!$invert && $check(0b11100011, 0b00011100), // 71
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$invert && $check(0b10100010, 0b01010101)
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=> 'M%1$s,%2$s h%3$s q-%3$s,0 -%3$s,%3$sz m0,1 v-%3$s q0,%3$s %3$s,%3$sZ',
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// diagonal
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!$invert && $check(0b10111011, 0b00000000) // 15
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=> 'M%1$s,%2$s h%3$s q-%3$s,0 -%3$s,%3$sz m1,1 h-%3$s q%3$s,0 %3$s,-%3$sZ',
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!$invert && $check(0b11101110, 0b00000000) // 37
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=> 'M%1$s,%2$s m1,0 v%3$s q0,-%3$s -%3$s,-%3$sz m-1,1 v-%3$s q0,%3$s %3$s,%3$sZ',
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// 1 rounded
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!$invert && $check(0b10000011, 0b01111100), // 1
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$invert && $check(0b10000010, 0b01010101)
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=> 'M%1$s,%2$s h%3$s q-%3$s,0 -%3$s,%3$sZ',
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!$invert && $check(0b00001110, 0b11110001), // 3
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$invert && $check(0b00001010, 0b01010101)
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=> 'M%1$s,%2$s m1,0 v%3$s q0,-%3$s -%3$s,-%3$sZ',
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!$invert && $check(0b00111000, 0b11000111), // 5
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$invert && $check(0b00101000, 0b01010101)
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=> 'M%1$s,%2$s m1,1 h-%3$s q%3$s,0 %3$s,-%3$sZ',
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!$invert && $check(0b11100000, 0b00011111), // 7
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$invert && $check(0b10100000, 0b01010101)
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=> 'M%1$s,%2$s m0,1 v-%3$s q0,%3$s %3$s,%3$sZ',
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// empty block
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default
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=> '',
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};
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}
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}
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/**
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* the augmented options class
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*
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* @property bool $melt
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* @property bool $inverseMelt
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* @property float $meltRadius
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*/
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class MeltedOutputOptions extends QROptions{
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/**
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* enable "melt" effect
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*/
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protected bool $melt = false;
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/**
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* whether to let the melt effect flow along the dark or light modules
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*/
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protected bool $inverseMelt = false;
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/**
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* the corner radius for melted modules
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*/
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protected float $meltRadius = 0.15;
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/**
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* clamp/set melt corner radius
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*/
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protected function set_meltRadius(float $meltRadius):void{
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$this->meltRadius = max(0.01, min(0.5, $meltRadius));
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}
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}
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/*
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* Runtime
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*/
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$options = new MeltedOutputOptions;
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// settings from the custom options class
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$options->melt = true;
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$options->inverseMelt = true;
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$options->meltRadius = 0.4;
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$options->version = 7;
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$options->outputInterface = MeltedSVGQRCodeOutput::class;
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$options->outputBase64 = false;
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$options->addQuietzone = true;
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$options->eccLevel = EccLevel::H;
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$options->addLogoSpace = true;
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$options->logoSpaceWidth = 13;
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$options->logoSpaceHeight = 13;
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$options->connectPaths = true;
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$options->excludeFromConnect = [
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QRMatrix::M_FINDER_DARK,
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QRMatrix::M_FINDER_DOT,
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];
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$options->svgDefs = '
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<linearGradient id="rainbow" x1="100%" y2="100%">
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<stop stop-color="#e2453c" offset="2.5%"/>
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<stop stop-color="#e07e39" offset="21.5%"/>
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<stop stop-color="#e5d667" offset="40.5%"/>
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<stop stop-color="#51b95b" offset="59.5%"/>
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<stop stop-color="#1e72b7" offset="78.5%"/>
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<stop stop-color="#6f5ba7" offset="97.5%"/>
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</linearGradient>
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<style><![CDATA[
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.light, .dark{fill: url(#rainbow);}
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]]></style>';
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$out = new QRCode($options)->render('https://www.youtube.com/watch?v=dQw4w9WgXcQ');
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if(PHP_SAPI !== 'cli'){
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header('Content-type: image/svg+xml');
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if(extension_loaded('zlib')){
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header('Vary: Accept-Encoding');
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header('Content-Encoding: gzip');
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$out = gzencode($out, 9);
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}
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}
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echo $out;
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exit;
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