Файл: vendor/intervention/image/src/Drivers/Gd/FontProcessor.php
Строк: 143
<?php
declare(strict_types=1);
namespace InterventionImageDriversGd;
use InterventionImageDriversAbstractFontProcessor;
use InterventionImageGeometryPoint;
use InterventionImageGeometryRectangle;
use InterventionImageInterfacesFontInterface;
use InterventionImageInterfacesSizeInterface;
class FontProcessor extends AbstractFontProcessor
{
/**
* {@inheritdoc}
*
* @see FontProcessorInterface::boxSize()
*/
public function boxSize(string $text, FontInterface $font): SizeInterface
{
// if the font has no ttf file the box size is calculated
// with gd's internal font system: integer values from 1-5
if (!$font->hasFilename()) {
// calculate box size from gd font
$box = new Rectangle(0, 0);
$chars = mb_strlen($text);
if ($chars > 0) {
$box->setWidth(
$chars * $this->gdCharacterWidth((int) $font->filename())
);
$box->setHeight(
$this->gdCharacterHeight((int) $font->filename())
);
}
return $box;
}
// calculate box size from ttf font file with angle 0
$box = imageftbbox(
size: $this->nativeFontSize($font),
angle: 0,
font_filename: $font->filename(),
string: $text
);
// build size from points
return new Rectangle(
width: intval(abs($box[6] - $box[4])), // difference of upper-left-x and upper-right-x
height: intval(abs($box[7] - $box[1])), // difference if upper-left-y and lower-left-y
pivot: new Point($box[6], $box[7]), // position of upper-left corner
);
}
/**
* {@inheritdoc}
*
* @see FontProcessorInterface::nativeFontSize()
*/
public function nativeFontSize(FontInterface $font): float
{
return floatval(round($font->size() * .76, 6));
}
/**
* {@inheritdoc}
*
* @see FontProcessorInterface::leading()
*/
public function leading(FontInterface $font): int
{
return (int) round(parent::leading($font) * .8);
}
/**
* Return width of a single character
*
* @param int $gdfont
* @return int
*/
protected function gdCharacterWidth(int $gdfont): int
{
return $gdfont + 4;
}
/**
* Return height of a single character
*
* @param int $gdfont
* @return int
*/
protected function gdCharacterHeight(int $gdfont): int
{
return match ($gdfont) {
2, 3 => 14,
4, 5 => 16,
default => 8,
};
}
}