95 lines
2.9 KiB
PHP
95 lines
2.9 KiB
PHP
<?php
|
|
|
|
require_once('gen.config.php');
|
|
|
|
function calculateTextBox($font_size, $font_angle, $font_file, $text) {
|
|
$box = imagettfbbox($font_size, $font_angle, $font_file, $text);
|
|
if( !$box )
|
|
return false;
|
|
$min_x = min( array($box[0], $box[2], $box[4], $box[6]) );
|
|
$max_x = max( array($box[0], $box[2], $box[4], $box[6]) );
|
|
$min_y = min( array($box[1], $box[3], $box[5], $box[7]) );
|
|
$max_y = max( array($box[1], $box[3], $box[5], $box[7]) );
|
|
$width = ( $max_x - $min_x );
|
|
$height = ( $max_y - $min_y );
|
|
$left = abs( $min_x ) + $width;
|
|
$top = abs( $min_y ) + $height;
|
|
$img = @imagecreatetruecolor( $width << 2, $height << 2 );
|
|
$white = imagecolorallocate( $img, 255, 255, 255 );
|
|
$black = imagecolorallocate( $img, 0, 0, 0 );
|
|
imagefilledrectangle($img, 0, 0, imagesx($img), imagesy($img), $black);
|
|
imagettftext( $img, $font_size,
|
|
$font_angle, $left, $top,
|
|
$white, $font_file, $text);
|
|
$rleft = $w4 = $width<<2;
|
|
$rright = 0;
|
|
$rbottom = 0;
|
|
$rtop = $h4 = $height<<2;
|
|
for( $x = 0; $x < $w4; $x++ )
|
|
for( $y = 0; $y < $h4; $y++ )
|
|
if( imagecolorat( $img, $x, $y ) ){
|
|
$rleft = min( $rleft, $x );
|
|
$rright = max( $rright, $x );
|
|
$rtop = min( $rtop, $y );
|
|
$rbottom = max( $rbottom, $y );
|
|
}
|
|
imagedestroy( $img );
|
|
return array( "left" => $left - $rleft,
|
|
"top" => $top - $rtop,
|
|
"width" => $rright - $rleft + 1,
|
|
"height" => $rbottom - $rtop + 1 );
|
|
}
|
|
|
|
|
|
if (!isset($_GET['code']))
|
|
die("`code` parameter not set");
|
|
|
|
if (!isset($_GET['size']))
|
|
die("`size` parameter not set");
|
|
|
|
if (!isset($_GET['color']))
|
|
die("`color` parameter not set");
|
|
$colorHtml = strtolower($_GET['color']);
|
|
if (!preg_match('/^[0-9a-f]{6}$/', $colorHtml) == 1)
|
|
die('Incorrect color code');
|
|
|
|
$colorR = base_convert(substr($colorHtml, 0, 2), 16, 10);
|
|
$colorG = base_convert(substr($colorHtml, 2, 2), 16, 10);
|
|
$colorB = base_convert(substr($colorHtml, 4, 2), 16, 10);
|
|
|
|
$code = intval($_GET['code']);
|
|
$size = intval($_GET['size']);
|
|
|
|
if ($code < 0 || $code > 65535)
|
|
die('Incorrect `code` value');
|
|
|
|
if ($size < $config['minSize'])
|
|
$size = $config['minSize'];
|
|
|
|
if ($size > $config['maxSize'])
|
|
$size = $config['maxSize'];
|
|
|
|
$fontFile = dirname(__FILE__).'/icons.ttf';
|
|
$text = html_entity_decode('&#' . $code . ';', ENT_COMPAT, 'UTF-8');
|
|
|
|
$dim = calculateTextBox($size, 0, $fontFile, $text);
|
|
|
|
$width = $dim['width'];
|
|
$height = $dim['height'];
|
|
$left = $dim['left'];
|
|
$top = $dim['top'];
|
|
|
|
$img = @imagecreatetruecolor($width, $height) or die("Cannot Initialize new GD image stream. Check GD library in installed on server and selected font for existence.");
|
|
imagesavealpha($img, true);
|
|
$trans_colour = imagecolorallocatealpha($img, 0, 0, 0, 127);
|
|
imagefill($img, 0, 0, $trans_colour);
|
|
|
|
$color = imagecolorallocate($img, $colorR, $colorG, $colorB);
|
|
|
|
imagettftext($img, $size, 0, $left, $top, $color, $fontFile, $text);
|
|
|
|
header("Content-type: image/png");
|
|
imagepng($img);
|
|
imagedestroy($img);
|
|
|
|
?>
|