public static function makeTextImage($text, $place_width, $place_height, $text_color = '#000000', $font = null, $margin = 2, $dpi = 300)
{
$new_text = $text;
if (empty($font)) {
$font = UserUrl::style(false) . DIRECTORY_SEPARATOR . 'fonts' . DIRECTORY_SEPARATOR . 'arial.ttf';
}
$max_font_size = 72;
//pt
$min_font_size = 14;
//pt
$place_width_px = Utils::mmToPx($place_width, $dpi);
$place_height_px = Utils::mmToPx($place_height, $dpi);
$margin_px = Utils::mmToPx($margin, $dpi);
$max_font_size_px = Utils::ptToPx($max_font_size, $dpi);
$current_font_size = $max_font_size;
$current_font_size_px = Utils::ptToPx($current_font_size, $dpi);
$rect = imagettfbbox($current_font_size_px, 0, $font, $text);
$width_px = $rect[2] - $rect[0];
$height_px = $rect[1] - $rect[5];
while ($width_px + $margin_px * 2 > $place_width_px || $height_px + $margin_px * 2 > $place_height_px) {
$current_font_size--;
//echo 'current_font_size='.$current_font_size;
$current_font_size_px = Utils::ptToPx($current_font_size, $dpi);
if ($current_font_size <= $min_font_size) {
if ($width_px + $margin_px * 2 > $place_width_px) {
$new_text = Utils::makeTextBlock($new_text, $font, $current_font_size_px, $place_width_px);
}
}
$rect = imagettfbbox($current_font_size_px, 0, $font, $new_text);
//echo 'place_width_px='.$place_width_px.'<br/>';
//echo 'place_height_px='.$place_height_px.'<br/>';
//print_r($rect);
$width_px = $rect[2] - $rect[0];
$height_px = $rect[1] - $rect[5];
}
$im = imagecreatetruecolor($place_width_px, $place_height_px);
$backgroundColor = imagecolorallocatealpha($im, 0, 0, 0, 127);
imagefill($im, 0, 0, $backgroundColor);
$box = new Box($im);
$box->setFontFace($font);
// http://www.dafont.com/franchise.font
$box->setFontColor(Utils::hexColorToArray($text_color));
$box->setFontSize($current_font_size_px);
$box->setLeading(1);
$box->setBox($margin_px, $margin_px, $place_width_px - $margin_px * 2, $place_height_px - $margin_px * 2);
$box->setTextAlign('center', 'center');
$box->draw($new_text);
// header("Content-type: image/png");
imagesavealpha($im, TRUE);
ob_start();
//Stdout --> buffer
imagepng($im);
$img = ob_get_contents();
//store stdout in $img2
ob_end_clean();
//clear buffer
imagedestroy($im);
return $img;
}