function imagecache_actions_validate_alpha in ImageCache Actions 7

Same name and namespace in other branches

1. 8 utility-form.inc \imagecache_actions_validate_alpha()
2. 6.2 utility-form.inc \imagecache_actions_validate_alpha()
3. 6 utility.inc \imagecache_actions_validate_alpha()

Form element validator that checks a transparency percentage value.

Parameters

array $element:

File

./utility-form.inc, line 62

Utility form, conversion and rendering functions for image processes.

Code

function imagecache_actions_validate_alpha(&$element) {
  if (!is_numeric($element['#value']) || $element['#value'] < 1 || $element['#value'] > 100) {
    form_set_error(join('][', $element['#parents']), t('Opacity must be a number between 1 and 100.'));
  }
}