Файл: vendor/intervention/image/src/Modifiers/TextModifier.php
Строк: 102
<?php
declare(strict_types=1);
namespace InterventionImageModifiers;
use InterventionImageDriversSpecializableModifier;
use InterventionImageExceptionsStateException;
use InterventionImageGeometryPoint;
use InterventionImageInterfacesColorInterface;
use InterventionImageInterfacesFontInterface;
use InterventionImageInterfacesPointInterface;
class TextModifier extends SpecializableModifier
{
/**
* Create new modifier object.
*/
public function __construct(
public string $text,
public PointInterface $position,
public FontInterface $font,
) {
//
}
/**
* Decode text color.
*
* The text outline effect is drawn with a trick by plotting additional text
* under the actual text with an offset in the color of the outline effect.
* For this reason, no colors with transparency can be used for the text
* color or the color of the stroke effect, as this would be superimposed.
*
* @throws StateException
*/
protected function textColor(): ColorInterface
{
$color = $this->driver()->decodeColor($this->font->color());
if ($this->font->hasStrokeEffect() && $color->isTransparent()) {
throw new StateException(
'The text color must be fully opaque when using the stroke effect',
);
}
return $color;
}
/**
* Decode outline stroke color.
*
* @throws StateException
*/
protected function strokeColor(): ColorInterface
{
$color = $this->driver()->decodeColor($this->font->strokeColor());
if ($color->isTransparent()) {
throw new StateException(
'The stroke color must be fully opaque',
);
}
return $color;
}
/**
* Return array of offset points to draw text stroke effect below the actual text.
*
* @return array<PointInterface>
*/
protected function strokeOffsets(FontInterface $font): array
{
$offsets = [];
if ($font->strokeWidth() <= 0) {
return $offsets;
}
for ($x = $font->strokeWidth() * -1; $x <= $font->strokeWidth(); $x++) {
for ($y = $font->strokeWidth() * -1; $y <= $font->strokeWidth(); $y++) {
$offsets[] = new Point($x, $y);
}
}
return $offsets;
}
}