50 lines
1.3 KiB
PHP
50 lines
1.3 KiB
PHP
<?php
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namespace Intervention\Image\Commands;
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use Closure;
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use Intervention\Image\Exception\InvalidArgumentException;
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class PolygonCommand extends AbstractCommand
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{
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/**
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* Draw a polygon on given image
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*
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* @param \Intervention\Image\image $image
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* @return boolean
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*/
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public function execute($image)
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{
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$points = $this->argument(0)->type('array')->required()->value();
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$callback = $this->argument(1)->type('closure')->value();
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$vertices_count = count($points);
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// check if number if coordinates is even
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if ($vertices_count % 2 !== 0) {
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throw new InvalidArgumentException(
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"The number of given polygon vertices must be even."
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);
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}
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if ($vertices_count < 6) {
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throw new InvalidArgumentException(
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"You must have at least 3 points in your array."
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);
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}
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$polygon_classname = sprintf('\Intervention\Image\%s\Shapes\PolygonShape',
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$image->getDriver()->getDriverName());
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$polygon = new $polygon_classname($points);
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if ($callback instanceof Closure) {
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$callback($polygon);
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}
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$polygon->applyToImage($image);
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return true;
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}
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}
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