Viewing file:  QrMakerController.php (5.14 KB) -rw-r--r--
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<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use SimpleSoftwareIO\QrCode\Facades\QrCode;
class QrMakerController extends Controller
{
public function index()
{
$data['restaurants'] = auth()->user()->restaurants;
$data['tables'] = auth()->user()->tables;
return view('qr.maker', $data);
}
/*
function TextToImage($text="hello world",$height=50,$width=100,$padding=5,$bg_color=[255,255,255],$color=[0,0,0],$transparent=false){
$im = imagecreate($width, $height);
// White background and blue text
$bg = imagecolorallocate($im, $bg_color[0], $bg_color[1], $bg_color[2]);
$textcolor = imagecolorallocate($im, $color[0], $color[1], $color[2]);
// Write the string at the top left
imagestring($im, 200, 0, 0, $text, $textcolor);
// Output the image
header('Content-type: image/png');
ob_start();
imagepng($im);
$contents = ob_get_clean();
imagedestroy($im);
return $contents;
}*/
function TextToImage(
$text = "hello world",
$newline_after_letters = 40,
$font = './myfont.ttf',
$size = 100,
$rotate = 0,
$padding = 30,
$transparent = false,
$color = array('red' => 0, 'grn' => 0, 'blu' => 0),
$bg_color = array('red' => 255, 'grn' => 255, 'blu' => 255)
)
{
$text_final = '';
$font = public_path('fonts') . '/Roboto-Medium.ttf';
//other version: pastebin(dot).com/XVVUyWGD
$amount_of_lines = ceil(strlen($text) / $newline_after_letters) + substr_count($text, '\n') + 1;
$all_lines = explode("\n", $text);
$text = "";
$amount_of_lines = count($all_lines);
foreach ($all_lines as $key => $value) {
while (mb_strlen($value, 'utf-8') > $newline_after_letters) {
$text_final .= mb_substr($value, 0, $newline_after_letters, 'utf-8') . "\n";
$value = mb_substr($value, $newline_after_letters, null, 'utf-8');
}
$text .= mb_substr($value, 0, $newline_after_letters, 'utf-8') . ($amount_of_lines - 1 == $key ? "" : "\n");
}
//
Header("Content-type: image/png");
$width = $height = $offset_x = $offset_y = 0;
if (!is_file($font)) {
file_put_contents($font, file_get_contents(public_path('fonts') . '/Roboto-Medium.ttf'));
}
// get the font height.
$bounds = ImageTTFBBox($size, $rotate, $font, "W");
if ($rotate < 0) {
$font_height = abs($bounds[7] - $bounds[1]);
} elseif ($rotate > 0) {
$font_height = abs($bounds[1] - $bounds[7]);
} else {
$font_height = abs($bounds[7] - $bounds[1]);
}
// determine bounding box.
$bounds = ImageTTFBBox($size, $rotate, $font, $text);
if ($rotate < 0) {
$width = abs($bounds[4] - $bounds[0]);
$height = abs($bounds[3] - $bounds[7]);
$offset_y = $font_height;
$offset_x = 0;
} elseif ($rotate > 0) {
$width = abs($bounds[2] - $bounds[6]);
$height = abs($bounds[1] - $bounds[5]);
$offset_y = abs($bounds[7] - $bounds[5]) + $font_height;
$offset_x = abs($bounds[0] - $bounds[6]);
} else {
$width = abs($bounds[4] - $bounds[6]);
$height = abs($bounds[7] - $bounds[1]);
$offset_y = $font_height;
$offset_x = 0;
}
$image = imagecreate($width + ($padding * 2) + 1, $height + ($padding * 2) + 1);
$background = ImageColorAllocate($image, $bg_color['red'], $bg_color['grn'], $bg_color['blu']);
$foreground = ImageColorAllocate($image, $color['red'], $color['grn'], $color['blu']);
if ($transparent) ImageColorTransparent($image, $background);
ImageInterlace($image, true);
// render the image
ImageTTFText($image, $size, $rotate, $offset_x + $padding, $offset_y + $padding, $foreground, $font, $text);
imagealphablending($image, true);
imagesavealpha($image, true);
// output PNG object.
ob_start();
imagepng($image);
$contents = ob_get_clean();
imagedestroy($image);
return $contents;
}
public function generate(Request $request)
{
$restaurant = auth()->user()->restaurants()->where('id', $request->restaurant)->first();
$table = auth()->user()->tables()->where('id', $request->table)->first();
if (!$restaurant) return response()->json(['failed' => trans('layout.message.restaurant_not_found')]);
$hex = $request->color;
$text = $request->text;
$img = $this->TextToImage($text);
list($r, $g, $b) = sscanf($hex, "#%02x%02x%02x");
$image = QrCode::format('png')->size(250)->mergeString($img,.4)->color($r, $g, $b)->generate(route('show.restaurant', ['slug' => $restaurant->slug, 'id' => $restaurant->id, 'table' => $table ? $table->id : null]));
return response('data:image/png;base64,' . base64_encode($image));
}
}
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