imageapi_optimize can not correctly process image_imageapi_optimize_image_effects_text

I get the following error when viewing an image that uses the Text effect provided by Imagecache Actions.

The selected image handling toolkit imageapi_optimize can not correctly process image_imageapi_optimize_image_effects_text.

It seems that the list of methods provided by _imageapi_optimize_get_methods() is incomplete. Here's a dump of the methods array.

... (Array, 12 elements)

    0 (String, 9 characters ) imagemask
    1 (String, 12 characters ) definecanvas
    2 (String, 7 characters ) overlay
    3 (String, 14 characters ) roundedcorners
    4 (String, 17 characters ) settings_validate
    5 (String, 14 characters ) check_settings
    6 (String, 6 characters ) resize
    7 (String, 6 characters ) rotate
    8 (String, 4 characters ) crop
    9 (String, 10 characters ) desaturate
    10 (String, 10 characters ) create_tmp
    11 (String, 8 characters ) get_info

Adding the following snippet before putting the methods array in the cache solved the problem for me.

  $effects = image_effects();
  foreach ($effects as $effect) {
    $method = $effect['name'];
    if (!in_array($method, $methods)) {
      $methods[] = $method;
    }
  }

Now, the methods array includes all the methods added by imagecache actions, its submodules, and manual crop.

... (Array, 22 elements)

    0 (String, 9 characters ) imagemask
    1 (String, 12 characters ) definecanvas
    2 (String, 7 characters ) overlay
    3 (String, 14 characters ) roundedcorners
    4 (String, 17 characters ) settings_validate
    5 (String, 14 characters ) check_settings
    6 (String, 6 characters ) resize
    7 (String, 6 characters ) rotate
    8 (String, 4 characters ) crop
    9 (String, 10 characters ) desaturate
    10 (String, 10 characters ) create_tmp
    11 (String, 8 characters ) get_info
    12 (String, 11 characters ) image_scale | (Callback) image_scale();
    13 (String, 26 characters ) canvasactions_definecanvas
    14 (String, 16 characters ) image_desaturate | (Callback) image_desaturate();
    15 (String, 25 characters ) canvasactions_canvas2file
    16 (String, 20 characters ) image_scale_and_crop | (Callback) image_scale_and_crop();
    17 (String, 15 characters ) manualcrop_crop
    18 (String, 25 characters ) manualcrop_crop_and_scale
    19 (String, 18 characters ) image_effects_text
    20 (String, 25 characters ) canvasactions_file2canvas
    21 (String, 10 characters ) image_crop | (Callback) image_crop();