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<?php |
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declare(strict_types=1); |
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namespace Suricate\Traits; |
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use InvalidArgumentException; |
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trait ImageFilter |
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{ |
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private $filters = [ |
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'IMG_FILTER_NEGATE', |
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'IMG_FILTER_GRAYSCALE', |
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'IMG_FILTER_BRIGHTNESS', |
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'IMG_FILTER_CONTRAST', |
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'IMG_FILTER_COLORIZE', |
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'IMG_FILTER_EDGEDETECT', |
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'IMG_FILTER_EMBOSS', |
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'IMG_FILTER_GAUSSIAN_BLUR', |
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'IMG_FILTER_SELECTIVE_BLUR', |
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'IMG_FILTER_MEAN_REMOVAL', |
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'IMG_FILTER_SMOOTH', |
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'IMG_FILTER_PIXELATE' |
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]; |
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public function asNegative() |
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{ |
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return $this->filter('IMG_FILTER_NEGATE'); |
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} |
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public function asGrayscale() |
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{ |
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return $this->filter('IMG_FILTER_GRAYSCALE'); |
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} |
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public function setBrightness($level) |
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{ |
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return $this->filter('IMG_FILTER_BRIGHTNESS', $level); |
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} |
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public function setContrast($level) |
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{ |
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return $this->filter('IMG_FILTER_CONTRAST', $level); |
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} |
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public function colorize($r, $g, $b, $alpha) |
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{ |
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$this->filter('IMG_FILTER_COLORIZE', $r, $g, $b, $alpha); |
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return $this; |
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} |
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public function detectEdge() |
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{ |
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return $this->filter('IMG_FILTER_EDGEDETECT'); |
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} |
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public function emboss() |
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{ |
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return $this->filter('IMG_FILTER_EMBOSS'); |
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} |
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public function blur() |
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{ |
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return $this->filter('IMG_FILTER_GAUSSIAN_BLUR'); |
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} |
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public function selectiveBlur() |
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{ |
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return $this->filter('IMG_FILTER_SELECTIVE_BLUR'); |
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} |
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public function meanRemoval() |
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{ |
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return $this->filter('IMG_FILTER_MEAN_REMOVAL'); |
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} |
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public function smooth($level) |
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{ |
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return $this->filter('IMG_FILTER_SMOOTH', $level); |
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} |
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public function pixelate($size) |
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{ |
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return $this->filter('IMG_FILTER_PIXELATE', $size); |
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} |
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protected function filter() |
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{ |
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$args = func_get_args(); |
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$filterType = array_shift($args); |
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if (in_array($filterType, $this->filters)) { |
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$params = [$this->source, constant($filterType)]; |
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$params = array_values(array_merge($params, $args)); |
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call_user_func_array('imagefilter', $params); |
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return $this; |
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} |
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throw new InvalidArgumentException( |
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'Unknown filter type ' . $filterType |
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); |
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} |
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} |
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suricate-php /
framework
