function image_imagick_shadow in Imagick 7

Genrates a shadow around an image

Parameters

$image: An image object. The $image->resource value will be modified by this call.

$color: The color of the shadow.

$opacity: The opacity of the shadow.

$sigma: The sigma of the shadow.

$x: The angle of the shadow.

$y: The angle of the shadow.

Return value

TRUE or FALSE, based on success.

File

effects/imagick.shadow.inc, line 21

Code

function image_imagick_shadow(stdClass $image, $color, $opacity, $sigma, $x, $y) {
  $color = empty($color) ? 'none' : $color;
  $shadow = clone $image->resource;
  $shadow
    ->setImageBackgroundColor(new ImagickPixel($color));
  $shadow
    ->shadowImage($opacity, $sigma, $x, $y);
  $shadow
    ->compositeImage($image->resource, Imagick::COMPOSITE_OVER, $x + $sigma * 2, $y + $sigma * 2);

  // Reset image dimensions
  $dimensions = $shadow
    ->getImageGeometry();
  $shadow
    ->setImagePage($dimensions['width'], $dimensions['height'], 0, 0);
  $image->info['width'] = $dimensions['width'];
  $image->info['height'] = $dimensions['height'];
  $image->resource = $shadow;
  return $image->resource;
}