function image_toolkit_invoke

7.x image.inc image_toolkit_invoke($method, stdClass $image, array $params = array())
6.x image.inc image_toolkit_invoke($method, $params = array())

Invokes the given method using the currently selected toolkit.

Parameters

$method: A string containing the method to invoke.

$params: An optional array of parameters to pass to the toolkit method.

Return value

Mixed values (typically Boolean indicating successful operation).

Related topics

Image toolkits
Drupal's image toolkits provide an abstraction layer for common image file manipulations like scaling, cropping, and rotating. The abstraction frees module authors from the need to support multiple image libraries, and it allows site…
6 calls to image_toolkit_invoke()
image_crop in drupal-6.x/includes/image.inc
Crop an image to the rectangle specified by the given rectangle.
image_resize in drupal-6.x/includes/image.inc
Resize an image to the given dimensions (ignoring aspect ratio).
image_rotate in drupal-6.x/includes/image.inc
Rotate an image by the given number of degrees.
image_scale in drupal-6.x/includes/image.inc
Scales an image to the given width and height while maintaining aspect ratio.
image_scale_and_crop in drupal-6.x/includes/image.inc
Scales an image to the exact width and height given. Achieves the target aspect ratio by cropping the original image equally on both sides, or equally on the top and bottom. This function is, for example, useful to create uniform sized avatars from…

... See full list

File

drupal-6.x/includes/image.inc, line 87
API for manipulating images.

Code

function image_toolkit_invoke($method, $params = array()) {
  if ($toolkit = image_get_toolkit()) {
    $function = 'image_' . $toolkit . '_' . $method;
    if (function_exists($function)) {
      return call_user_func_array($function, $params);
    }
    else {
      watchdog('php', 'The selected image handling toolkit %toolkit can not correctly process %function.', array('%toolkit' => $toolkit, '%function' => $function), WATCHDOG_ERROR);
      return FALSE;
    }
  }
}