Imagecache Preset Action

Yep this would be a cool feature! We have a round corner effect on about 8 presets, it would be nice to do this in a single action (size and color underlay) and reference it all via a single preset.

PS: A lazy way of doing a custom PHP action (10 is the imagecache preset id):

<?php
if ($preset = imagecache_preset(10)) {
  foreach ($preset['actions'] as $sub_action) {
    _imagecache_apply_action($sub_action, $image);
  }
}
return $image;
?>

And the code for the action:

<?php

function vsb_theme() {
  return array(
    'vsb_preset_reference' => array(
      'arguments' => array('element' => NULL),
    ),
  );
}
function vsb_imagecache_actions() {
  $actions = array(
    'vsb_preset_reference' => array(
      'name' => 'Reference another preset',
      'description' => 'Runs another defined preset on the image.',
    ),
  );
  return $actions;
}

function vsb_preset_reference_form($action) {
  $action = (array)$action;

  $form = array();

  $presets = array();
  foreach (imagecache_presets(TRUE) as $preset) {
    $presets[$preset['presetid']] = $preset['presetname'];
  }

  $form['reference'] = array(
    '#type' => 'select',
    '#title' => t('Preset to use on the image'),
    '#default_value' => $action['reference'],
    '#options' => $presets,
  );

  return $form;
}

/**
* This lets the user see what parameters were selected for the action
*/
function theme_vsb_preset_reference($element) {
  $data = $element['#value'];
  if ($preset = imagecache_preset($data['reference'])) {
    return t('%name (pid: !presetid)', array('%name' => $preset['presetname'], '!presetid' => $preset['presetid']));
  }
  return t('<span class="error">Invalid reference. The referenced preset has been deleted!</span>');
}

/**
* Prep the filter
*/
function vsb_preset_reference_image(&$image, $data) {
  if ($preset = imagecache_preset($data['reference'])) {
    foreach ($preset['actions'] as $sub_action) {
      _imagecache_apply_action($sub_action, $image);
    }
  }
  return true;
}
?>

Hey, that looks like it might be working code!
Right, that makes so much sense I'll roll this in.
Now in 6.x-2-dev, as part of 'customactions'

... I renamed vsb_preset_reference to just 'subroutine'

Works for me!
Thanks for the contrib!

Cool, it has been useful addition on the last project we used.

Thanks for the module!

In -dev