function CreateNew::execute

File

core/modules/system/src/Plugin/ImageToolkit/Operation/gd/CreateNew.php, line 81

Class

CreateNew

Defines GD2 create_new image operation.

Namespace

Code

protected function execute(array $arguments) {
  // Get the image type.
  $type = $this->getToolkit()
    ->extensionToImageType($arguments['extension']);
  // Store the original GD resource.
  $original_res = $this->getToolkit()
    ->getResource();
  // Create the resource.
  if (!$res = imagecreatetruecolor($arguments['width'], $arguments['height'])) {
    return FALSE;
  }
  // Fill the resource with transparency as possible.
  switch ($type) {
    case IMAGETYPE_PNG:
    case IMAGETYPE_WEBP:
      imagealphablending($res, FALSE);
      $transparency = imagecolorallocatealpha($res, 0, 0, 0, 127);
      imagefill($res, 0, 0, $transparency);
      imagealphablending($res, TRUE);
      imagesavealpha($res, TRUE);
      break;

    case IMAGETYPE_GIF:
      if (empty($arguments['transparent_color'])) {
        // No transparency color specified, fill white transparent.
        $fill_color = imagecolorallocatealpha($res, 255, 255, 255, 127);
      }
      else {
        $fill_rgb = Color::hexToRgb($arguments['transparent_color']);
        $fill_color = imagecolorallocatealpha($res, $fill_rgb['red'], $fill_rgb['green'], $fill_rgb['blue'], 127);
        imagecolortransparent($res, $fill_color);
      }
      imagefill($res, 0, 0, $fill_color);
      break;

    case IMAGETYPE_JPEG:
      imagefill($res, 0, 0, imagecolorallocate($res, 255, 255, 255));
      break;

  }
  // Update the toolkit properties.
  $this->getToolkit()
    ->setType($type);
  $this->getToolkit()
    ->setResource($res);
  // Destroy the original resource if it is not needed by other operations.
  if (!$arguments['is_temp'] && is_resource($original_res)) {
    imagedestroy($original_res);
  }
  return TRUE;
}