function image_rotate_dimensions in Drupal 7

Image dimensions callback; Rotate.

Parameters

$dimensions: Dimensions to be modified - an array with components width and height, in pixels.

$data: An array of attributes to use when performing the rotate effect containing the following items:

• "degrees": The number of (clockwise) degrees to rotate the image.
• "random": A boolean indicating that a random rotation angle should be used for this image. The angle specified in "degrees" is used as a positive and negative maximum.

1 string reference to 'image_rotate_dimensions'

image_image_effect_info in modules/image/image.effects.inc

Implements hook_image_effect_info().

File

modules/image/image.effects.inc, line 301

Functions needed to execute image effects provided by Image module.

Code

function image_rotate_dimensions(array &$dimensions, array $data) {

  // If the rotate is not random and the angle is a multiple of 90 degrees,
  // then the new dimensions can be determined.
  if (!$data['random'] && (int) $data['degrees'] == $data['degrees'] && $data['degrees'] % 90 == 0) {
    if ($data['degrees'] % 180 != 0) {
      $temp = $dimensions['width'];
      $dimensions['width'] = $dimensions['height'];
      $dimensions['height'] = $temp;
    }
  }
  else {
    $dimensions['width'] = $dimensions['height'] = NULL;
  }
}