<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Abstract class for the hex transformations plugins
*
* @package PhpMyAdmin-Transformations
* @subpackage Hex
*/
if (! defined('PHPMYADMIN')) {
exit;
}

/* Get the transformations interface */
require_once 'libraries/plugins/TransformationsPlugin.class.php';

/**
* Provides common methods for all of the hex transformations plugins.
*
* @package PhpMyAdmin
*/
abstract class HexTransformationsPlugin extends TransformationsPlugin
{
/**
* Gets the transformation description of the specific plugin
*
* @return string
*/
public static function getInfo()
{
return __(
'Displays hexadecimal representation of data. Optional first'
. ' parameter specifies how often space will be added (defaults'
. ' to 2 nibbles).'
);
}

/**
* Does the actual work of each specific transformations plugin.
*
* @param string $buffer text to be transformed
* @param array $options transformation options
* @param string $meta meta information
*
* @return void
*/
public function applyTransformation($buffer, $options = array(), $meta = '')
{
// possibly use a global transform and feed it with special options
if (!isset($options[0])) {
$options[0] = 2;
} else {
$options[0] = (int)$options[0];
}

if ($options[0] < 1) {
return bin2hex($buffer);
} else {
return chunk_split(bin2hex($buffer), $options[0], ' ');
}
}

/**
* This method is called when any PluginManager to which the observer
* is attached calls PluginManager::notify()
*
* @param SplSubject $subject The PluginManager notifying the observer
* of an update.
*
* @todo implement
* @return void
*/
public function update (SplSubject $subject)
{
;
}


/* ~~~~~~~~~~~~~~~~~~~~ Getters and Setters ~~~~~~~~~~~~~~~~~~~~ */


/**
* Gets the transformation name of the specific plugin
*
* @return string
*/
public static function getName()
{
return "Hex";
}
}
?>