mirror of
https://github.com/chillerlan/php-qrcode.git
synced 2026-09-12 10:46:28 +00:00
✨ "melted" SVG output example (#127)
This commit is contained in:
@@ -19,5 +19,6 @@
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- [GD Image with logo](./imageWithLogo.php): a logo on top of the QR Code
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- [GD image with text](./imageWithText.php): description text under the QR Code ([#35](https://github.com/chillerlan/php-qrcode/issues/35))
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- [SVG with logo](./svgWithLogo.php): an SVG QR Code with embedded logo (that is also SVG)
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- [SVG with "melted" modules](./svgMeltedModules.php): an effect where the matrix appears to be like melted wax ([#127](https://github.com/chillerlan/php-qrcode/issues/127))
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- [SVG with randomly colored modules](./svgRandomColoredDots.php): a visual effect using multiple colors for the matrix modules ([#136](https://github.com/chillerlan/php-qrcode/discussions/136))
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- [SVG with a round shape and randomly filled quiet zone](./svgRoundQuietzone.php): example similar to the QR Codes of a certain vendor ([#137](https://github.com/chillerlan/php-qrcode/discussions/137))
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@@ -0,0 +1,287 @@
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<?php
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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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*/
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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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use chillerlan\QRCode\{QRCode, QROptions};
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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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/**
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* @inheritDoc
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*/
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protected function collectModules(Closure $transform):array{
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$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 => $M_TYPE){
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$M_TYPE_LAYER = $M_TYPE;
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if($this->options->connectPaths && $this->matrix->checkTypeNotIn($x, $y, $this->options->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($this->matrix->check($x, $y)){
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$M_TYPE_LAYER |= QRMatrix::IS_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($this->options->melt){
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$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 = $transform($x, $y, $M_TYPE, $M_TYPE_LAYER);
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if(!empty($module)){
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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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/**
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* @inheritDoc
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*/
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protected function module(int $x, int $y, int $M_TYPE):string{
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$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, $this->options->inverseMelt);
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$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 $invert):string{
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switch(true){
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// 4 rounded
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case !$invert && $check(0b00000000, 0b01010101):
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case $invert && $check(0b00000000, 0b00000000):
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return 'M%1$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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case $invert && $check(0b01000000, 0b00000000): // 135
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return 'M%1$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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case $invert && $check(0b00000001, 0b00000000): // 357
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return 'M%1$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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case $invert && $check(0b00000100, 0b00000000): // 571
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return 'M%1$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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case $invert && $check(0b00010000, 0b00000000): // 713
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return 'M%1$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$sZ';
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// 2 rounded
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case !$invert && $check(0b00100000, 0b01010101): // 13
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case $invert && $check(0b00000000, 0b01110000):
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return 'M%1$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$sZ';
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case !$invert && $check(0b10000000, 0b01010101): // 35
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case $invert && $check(0b00000000, 0b11000001):
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return 'M%1$s,%2$s v1 h%4$s q%3$s,0 %3$s,-%3$s v-%5$s q0,-%3$s -%3$s,-%3$sZ';
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case !$invert && $check(0b00000010, 0b01010101): // 57
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case $invert && $check(0b00000000, 0b00000111):
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return 'M%1$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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case !$invert && $check(0b00001000, 0b01010101): // 71
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case $invert && $check(0b00000000, 0b00011100):
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return 'M%1$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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case $invert && $check(0b01000100, 0b00000000): // 15
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return 'M%1$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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case $invert && $check(0b00010001, 0b00000000): // 37
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return 'M%1$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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case !$invert && $check(0b00101000, 0b01010101): // 1
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case $invert && $check(0b00000000, 0b01111100):
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return 'M%1$s,%2$s m0,1 h1 v-1 h-%4$s q-%3$s,0 -%3$s,%3$sZ';
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case !$invert && $check(0b10100000, 0b01010101): // 3
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case $invert && $check(0b00000000, 0b11110001):
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return 'M%1$s,%2$s h%4$s q%3$s,0 %3$s,%3$s v%4$s h-1Z';
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case !$invert && $check(0b10000010, 0b01010101): // 5
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case $invert && $check(0b00000000, 0b11000111):
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return 'M%1$s,%2$s h1 v%4$s q0,%3$s -%3$s,%3$s h-%4$sZ';
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case !$invert && $check(0b00001010, 0b01010101): // 7
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case $invert && $check(0b00000000, 0b00011111):
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return 'M%1$s,%2$s v%4$s q0,%3$s %3$s,%3$s h%4$s v-1Z';
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}
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// full square
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return 'M%1$s,%2$s h1 v1 h-1Z';
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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 $invert):string{
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switch(true){
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// 4 rounded
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case !$invert && $check(0b11111111, 0b01010101):
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case $invert && $check(0b10101010, 0b01010101):
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return 'M%1$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$sZ';
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// 3 rounded
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case !$invert && $check(0b10111111, 0b00000000): // 135
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return 'M%1$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$sZ';
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case !$invert && $check(0b11111110, 0b00000000): // 357
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return 'M%1$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$sZ';
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case !$invert && $check(0b11111011, 0b00000000): // 571
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return 'M%1$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$sZ';
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case !$invert && $check(0b11101111, 0b00000000): // 713
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return 'M%1$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$sZ';
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// 2 rounded
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case !$invert && $check(0b10001111, 0b01110000): // 13
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case $invert && $check(0b10001010, 0b01010101):
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return 'M%1$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$sZ';
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case !$invert && $check(0b00111110, 0b11000001): // 35
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case $invert && $check(0b00101010, 0b01010101):
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return 'M%1$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$sZ';
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case !$invert && $check(0b11111000, 0b00000111): // 57
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case $invert && $check(0b10101000, 0b01010101):
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return 'M%1$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$sZ';
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case !$invert && $check(0b11100011, 0b00011100): // 71
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case $invert && $check(0b10100010, 0b01010101):
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return 'M%1$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$sZ';
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// diagonal
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case !$invert && $check(0b10111011, 0b00000000): // 15
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return 'M%1$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$sZ';
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case !$invert && $check(0b11101110, 0b00000000): // 37
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return 'M%1$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$sZ';
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// 1 rounded
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case !$invert && $check(0b10000011, 0b01111100): // 1
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case $invert && $check(0b10000010, 0b01010101):
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return 'M%1$s,%2$s h%3$s q-%3$s,0 -%3$s,%3$sZ';
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case !$invert && $check(0b00001110, 0b11110001): // 3
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case $invert && $check(0b00001010, 0b01010101):
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return 'M%1$s,%2$s m1,0 v%3$s q0,-%3$s -%3$s,-%3$sZ';
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case !$invert && $check(0b00111000, 0b11000111): // 5
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case $invert && $check(0b00101000, 0b01010101):
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return 'M%1$s,%2$s m1,1 h-%3$s q%3$s,0 %3$s,-%3$sZ';
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case !$invert && $check(0b11100000, 0b00011111): // 7
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case $invert && $check(0b10100000, 0b01010101):
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return 'M%1$s,%2$s m0,1 v-%3$s q0,%3$s %3$s,%3$sZ';
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}
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// empty block
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return '';
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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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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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'melt' => true,
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'inverseMelt' => true,
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'meltRadius' => 0.4,
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'version' => 7,
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'eccLevel' => EccLevel::H,
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'addQuietzone' => true,
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'addLogoSpace' => true,
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'logoSpaceWidth' => 13,
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'logoSpaceHeight' => 13,
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'connectPaths' => true,
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'imageBase64' => false,
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'outputType' => QRCode::OUTPUT_CUSTOM,
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'outputInterface' => MeltedSVGQRCodeOutput::class,
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'excludeFromConnect' => [
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QRMatrix::M_FINDER|QRMatrix::IS_DARK,
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QRMatrix::M_FINDER_DOT|QRMatrix::IS_DARK,
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],
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'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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]);
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$qrcode = (new QRCode($options))->render('https://www.youtube.com/watch?v=dQw4w9WgXcQ');
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if(php_sapi_name() !== '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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$qrcode = gzencode($qrcode, 9);
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}
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}
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echo $qrcode;
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exit;
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Reference in New Issue
Block a user