Enter PHP code for your custom action. Source image is available in the $image object
which contains an $image->info array,
and a $image->resource which is the php toolkit object itself.
Your code must return an image object of the same structure (see ImageAPI).
For convenience, the images current $image->info variables
- $width, $height are available in the current scope.
Do not use %php tags.
If possible, the owning $node object may also be available.
Note that executing incorrect PHP-code can break your Drupal site.
If you are using a WYSIWYG, you must disable it for this edit area.
// Wave an image
$amplitude = 10; $period = 10;
$x=0; $y=0;
// Make a copy of the image twice the size
$height2 = $height * 2; $width2 = $width * 2;
$img2 = imagecreatetruecolor($width2, $height2);
imagecopyresampled($img2, $image->resource, 0, 0, $x, $y, $width2, $height2, $width, $height);
// Wave it
for($i = 0; $i < ($width2); $i += 2)
imagecopy($img2, $img2, $x+$i-2, $y+sin($i/$period)*$amplitude, $x+$i, $y, 2, $height2);
// Resample it down again
imagecopyresampled($image->resource, $img2, $x, $y, 0, 0, $width, $height, $width2, $height2);
imagedestroy($img2);
return $image;
# code modified from bokehman at http://www.sitepoint.com/forums/showpost.php?p=3655457
',
array('%php' => '')),
'#wysiwyg' => FALSE,
),
);
return $form;
}
/**
* Implements hook_image().
*
* @param $image
* @param $action
*/
function imagecache_customactions_image($image, $action) {
// Pull the images $width and $height out to play
@extract($image->info);
// And maybe the owner node data could be useful
if (function_exists('imagecache_actions_node_from_filepath')) {
$node = imagecache_actions_node_from_filepath($image->source);
}
// To get clever and do things post-process, let the process know what the final filename will be.
// It seems we cannot see what $dst or even our onwing presetname is.
// But we do know what the URL was the invoked this action! that's out filename-to-be!
$dst = $_REQUEST['q'];
$result = eval($action['text']);
return $result;
}
/**
* Implementation of theme_hook() for imagecache_ui.module
*/
function theme_imagecache_customactions($element) {
// TODO: Should this theme imagecache_customactions be declared in hook_theme()?
$data = $element['#value'];
return "" . $data['text'] . "";
}
/**
* Subroutine - an imagecache action that just calls another one.
*
* Contributed by Alan D
* http://drupal.org/node/618784
*
* Reworked into customactions by dman 2010-07
*/
/**
* Config form for this preset.
*
* Implementation of imagecache_hook_form()
*
* @param $action array of settings for this action
* @return a form definition
*/
function imagecache_subroutine_form($action) {
$action = (array) $action;
$form = array();
// List available presets
$presets = array();
foreach (imagecache_presets(TRUE) as $preset) {
$presets[$preset['presetname']] = $preset['presetname'];
}
$form['subroutine_presetname'] = array(
'#type' => 'select',
'#title' => t('Preset to call'),
'#default_value' => $action['subroutine_presetname'],
'#options' => $presets,
);
return $form;
}
/**
* Actually invoke the action - which means just handing off to the named real
* preset to do the job.
*
* Implementation of hook_image()
*
* @param $image
* @param $action
*/
function imagecache_subroutine_image($image, $data) {
if ($preset = imagecache_preset_by_name($data['subroutine_presetname'])) {
foreach ($preset['actions'] as $sub_action) {
_imagecache_apply_action($sub_action, $image);
}
}
return TRUE;
}
/**
* This lets the user see what parameters were selected for the action
*/
function theme_imagecache_subroutine($variables) {
$element = $variables['element'];
$data = $element['#value'];
if ($preset = imagecache_preset_by_name($data['subroutine_presetname'])) {
return t('%name (pid: !presetid)', array('%name' => $preset['presetname'], '!presetid' => $preset['presetid']));
}
return t('Invalid reference. The referenced preset may have been deleted!');
}