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authorMario <mario@mariovavti.com>2023-03-08 10:04:29 +0000
committerMario <mario@mariovavti.com>2023-03-08 10:04:29 +0000
commit234bb6425021b72f0db71667191b2c36dc593791 (patch)
tree2966d68516cebae70d4a75aace9962a809532339 /vendor/chillerlan/php-qrcode/examples/QRImageWithText.php
parentd43a56614cd93982d19f4f82aae6e62f9ca533a9 (diff)
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port totp mfa from streams with some adjustions
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diff --git a/vendor/chillerlan/php-qrcode/examples/QRImageWithText.php b/vendor/chillerlan/php-qrcode/examples/QRImageWithText.php
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+<?php
+/**
+ * Class QRImageWithText
+ *
+ * example for additional text
+ *
+ * @link https://github.com/chillerlan/php-qrcode/issues/35
+ *
+ * @filesource QRImageWithText.php
+ * @created 22.06.2019
+ * @package chillerlan\QRCodeExamples
+ * @author smiley <smiley@chillerlan.net>
+ * @copyright 2019 smiley
+ * @license MIT
+ *
+ * @noinspection PhpComposerExtensionStubsInspection
+ */
+
+namespace chillerlan\QRCodeExamples;
+
+use chillerlan\QRCode\Output\QRImage;
+
+use function base64_encode, imagechar, imagecolorallocate, imagecolortransparent, imagecopymerge, imagecreatetruecolor,
+ imagedestroy, imagefilledrectangle, imagefontwidth, in_array, round, str_split, strlen;
+
+class QRImageWithText extends QRImage{
+
+ /**
+ * @param string|null $file
+ * @param string|null $text
+ *
+ * @return string
+ */
+ public function dump(string $file = null, string $text = null):string{
+ // set returnResource to true to skip further processing for now
+ $this->options->returnResource = true;
+
+ // there's no need to save the result of dump() into $this->image here
+ parent::dump($file);
+
+ // render text output if a string is given
+ if($text !== null){
+ $this->addText($text);
+ }
+
+ $imageData = $this->dumpImage();
+
+ if($file !== null){
+ $this->saveToFile($imageData, $file);
+ }
+
+ if($this->options->imageBase64){
+ $imageData = 'data:image/'.$this->options->outputType.';base64,'.base64_encode($imageData);
+ }
+
+ return $imageData;
+ }
+
+ /**
+ * @param string $text
+ */
+ protected function addText(string $text):void{
+ // save the qrcode image
+ $qrcode = $this->image;
+
+ // options things
+ $textSize = 3; // see imagefontheight() and imagefontwidth()
+ $textBG = [200, 200, 200];
+ $textColor = [50, 50, 50];
+
+ $bgWidth = $this->length;
+ $bgHeight = $bgWidth + 20; // 20px extra space
+
+ // create a new image with additional space
+ $this->image = imagecreatetruecolor($bgWidth, $bgHeight);
+ $background = imagecolorallocate($this->image, ...$textBG);
+
+ // allow transparency
+ if($this->options->imageTransparent && in_array($this->options->outputType, $this::TRANSPARENCY_TYPES, true)){
+ imagecolortransparent($this->image, $background);
+ }
+
+ // fill the background
+ imagefilledrectangle($this->image, 0, 0, $bgWidth, $bgHeight, $background);
+
+ // copy over the qrcode
+ imagecopymerge($this->image, $qrcode, 0, 0, 0, 0, $this->length, $this->length, 100);
+ imagedestroy($qrcode);
+
+ $fontColor = imagecolorallocate($this->image, ...$textColor);
+ $w = imagefontwidth($textSize);
+ $x = round(($bgWidth - strlen($text) * $w) / 2);
+
+ // loop through the string and draw the letters
+ foreach(str_split($text) as $i => $chr){
+ imagechar($this->image, $textSize, (int)($i * $w + $x), $this->length, $chr, $fontColor);
+ }
+ }
+
+}