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author | Mario <mario@mariovavti.com> | 2024-03-14 10:13:22 +0000 |
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committer | Mario <mario@mariovavti.com> | 2024-03-14 10:13:22 +0000 |
commit | 55097c47c5534d4453f7494f8a1542f7beb4d588 (patch) | |
tree | 399f81bbd03fcb4bb713339d06512eee962ec8f6 /vendor/chillerlan/php-qrcode/examples/QRImageWithText.php | |
parent | 97b82fc77b424d051b2a472ab2318fd768151bdd (diff) | |
download | volse-hubzilla-55097c47c5534d4453f7494f8a1542f7beb4d588.tar.gz volse-hubzilla-55097c47c5534d4453f7494f8a1542f7beb4d588.tar.bz2 volse-hubzilla-55097c47c5534d4453f7494f8a1542f7beb4d588.zip |
Revert "composer update and use the fixed streams php-jcs library until the floats issue will be fixed upstream. see here for reference https://codeberg.org/streams/streams/issues/151"
This reverts commit 6bf61dfa6b585db01b607a79bd64ec9c583a9c10.
Diffstat (limited to 'vendor/chillerlan/php-qrcode/examples/QRImageWithText.php')
-rw-r--r-- | vendor/chillerlan/php-qrcode/examples/QRImageWithText.php | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/vendor/chillerlan/php-qrcode/examples/QRImageWithText.php b/vendor/chillerlan/php-qrcode/examples/QRImageWithText.php new file mode 100644 index 000000000..fe6b962a9 --- /dev/null +++ b/vendor/chillerlan/php-qrcode/examples/QRImageWithText.php @@ -0,0 +1,100 @@ +<?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); + } + } + +} |