crop.php

<?php

class CropFoto extends Eloquent {

  private $cropper;
  private $upload;
  private $ratio;
  private $scale;
  private $config;

  public function edicao()
  {
    return $this->belongs_to('Edicao');
  }

  public static function make($fotoId)
  {
    $instance = new self;

    $instance->upload = UploadFoto::find($fotoId);

    $instance->eloquent_id = $instance->upload->eloquent_id;

    $data = Input::all('data');

    $instance->tipo = $data['tipo'];

    $instance->ratio = $instance->getRatio();

    $instance->scale = $data['scaled_width'] / $instance->upload->width;

    $instance->cropper = $data['cropData'];

    $instance->crop();

    $instance->save();

    return $instance;
  }

  private function crop()
  {
    $dest = $this->getNewImage();

    $isOk = imagecopyresampled(
      $dest,
      imagecreatefromjpeg($this->upload->getCaminho()),
      0,
      0,
      $this->cropper['x'] / $this->scale,
      $this->cropper['y'] / $this->scale,
      imagesx($dest),
      imagesy($dest),
      $this->cropper['w'] / $this->scale,
      $this->cropper['h'] / $this->scale
    );

    if (! $isOk) {
      die('deu problema!!!');
    }

    $this->createUniqueFilename();

    imagejpeg($dest, $this->getCaminho());
  }

  public function getCaminho()
  {
    return Config::get('foto.crop_dir') . $this->arquivo;
  }

  private function createUniqueFilename()
  {
    $this->arquivo = $this->upload->eloquent_name . '-' . str_pad(
      (string) $this->eloquent_id, 6, '0', STR_PAD_LEFT
    ) . '-' . $this->tipo . '-' . time() . '.' . File::extension($this->upload->arquivo);
  }

  private function getNewImage()
  {
    return imagecreatetruecolor(
      (int) $this->cropper['w'] / $this->scale,
      (int) $this->cropper['h'] / $this->scale
    );
  }

  private function getRatio()
  {
    $ratios = Config::get('foto.ratios');
    return $ratios[$this->tipo];
  }

  public function size()
  {
    $sizes = Config::get('foto.sizes');
    return $sizes[$this->tipo][0];
  }

}