<?php
/*################################################################################*
#
# (c)Copyright Till Wehowski, http://Webfan.de
# License: Do What The Fuck You Want To Public License
*/
namespace webdof\Serialize\Bit;
use webdof\Serialize;
abstract class Bitmask
{
protected $flags;
function __construct()
{
$this->clear();
}
public function save()
{
return $this->flags;
}
public function load($flags)
{
$this->flags = (int)$flags;
return $this->get($this->flags, TRUE);
}
public function clear()
{
$this->load(0);
}
protected function get($x, $set = TRUE)
{
$r = array();
$n = 1;
$c = 0;
while ( $x > 0 ) {
if ( $x & 1 == 1 ) {
$r[$c] = $n;
}
$n *= 2 ;
$x >>= 1 ;
$c++;
}
return $r;
}
public function is($flag)
{
return (($this->flags & $flag) === $flag);
}
public function set($flag, $value)
{
if(is_bool($value)) {
$value=($value===TRUE) ? 1 : 0;
}elseif(is_numeric($value)){
$value = ($value >= 1) ? 1 : 0;
}
if($value < 1)unset($value);
if(isset($value) && $value !== 1)
trigger_error( 'Data Type Error in '.get_class($this)
.' '.__METHOD__.' '.basename(__FILE__).' line '.__LINE__ , E_USER_FATAL );
if(isset($value) && $value === 1)
{
$this->flags |= $flag;
}
else
{
$this->flags &= ~$flag;
}
}
}
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