public function toHsl()
{
$mode = $this->mode;
$channels = $this->channels;
if (!$mode || $mode == 'hsl') {
return $this;
}
if ($mode == 'hsla') {
// If we don't need alpha channel, drop it
if ($channels['a']->getValue() >= 1) {
unset($this->channels['a']);
$this->mode = 'hsl';
}
return $this;
}
$hsl = Util\Color::rgb2hsl($channels['r']->getValue(), $channels['g']->getValue(), $channels['b']->getValue(), isset($channels['a']) ? $channels['a']->getValue() : 1);
$this->channels = array();
$this->channels['h'] = new Dimension($hsl['h']);
$this->channels['s'] = new Percentage($hsl['s']);
$this->channels['l'] = new Percentage($hsl['l']);
$this->mode = 'hsl';
if (isset($hsl['a'])) {
$this->channels['a'] = new Dimension($hsl['a']);
$this->mode = 'hsla';
}
return $this;
}
