FlipCommand.php

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<?php
 
namespace Intervention\Image\Gd\Commands;
 
class FlipCommand extends ResizeCommand
{
    public function execute($image)
    {
        $mode = $this->argument(0)->value('h');
 
        $size = $image->getSize();
        $dst = clone $size;
 
        switch (strtolower($mode)) {
            case 2:
            case 'v':
            case 'vert':
            case 'vertical':
                $size->pivot->y = $size->height - 1;
                $size->height = $size->height * (-1);
                break;
 
            default:
                $size->pivot->x = $size->width - 1;
                $size->width = $size->width * (-1);
                break;
        }
 
        return $this->modify($image, 0, 0, $size->pivot->x, $size->pivot->y, $dst->width, $dst->height, $size->width, $size->height);
    }
}