/**
*
* @param ILess_Node_Color $color1 The first color
* @param ILess_Node_Color $color2 The second color
*/
public function negation(ILess_Node_Color $color1, ILess_Node_Color $color2)
{
$color1Rgb = $color1->getRGB();
$color2Rgb = $color2->getRGB();
$r = 255 - abs(255 - $color2Rgb[0] - $color1Rgb[0]);
$g = 255 - abs(255 - $color2Rgb[1] - $color1Rgb[1]);
$b = 255 - abs(255 - $color2Rgb[2] - $color1Rgb[2]);
return $this->rgb($r, $g, $b);
}
/**
* @covers operate
*/
public function testOperate()
{
$env = new ILess_Environment();
$color = new ILess_Node_Color('#ffffff');
$other = new ILess_Node_Color('#ff0000');
$result = $color->operate($env, '+', $other);
// new color is returned
$this->assertInstanceOf('ILess_Node_Color', $result);
$this->assertEquals($result->getRGB(), array(255, 255, 255));
}
