/**
* @inheritdoc
*/
public function generateCSS(Context $context, OutputInterface $output)
{
if ($context->strictUnits && !$this->unit->isSingular()) {
throw new CompilerException(sprintf('Multiple units in dimension. Correct the units or use the unit function. Bad unit: %s', $this->unit->toString()));
}
$value = Util::round($context, $this->value);
$strValue = (string) $value;
if ($value !== 0 && $value < 1.0E-6 && $value > -1.0E-6) {
$strValue = Math::toFixed($value, 20);
}
// remove trailing zeros
$strValue = Math::clean($strValue);
// Zero values doesn't need a unit
if ($context->compress) {
if ($value == 0 && $this->unit->isLength()) {
$output->add($strValue);
return;
}
// Float values doesn't need a leading zero
if ($value > 0 && $value < 1) {
$strValue = substr($strValue, 1);
}
}
$output->add($strValue);
// pass to unit
$this->unit->generateCSS($context, $output);
}
/**
* @covers toFixed
* @dataProvider getDataForToFixedTest
*/
public function testToFixed($test, $decimals, $expected)
{
$this->assertEquals($expected, Math::toFixed($test, $decimals));
}
/**
* Round the value using the `$context->precision` setting.
*
* @param Context $context
* @param mixed $value
*
* @return string
*/
public static function round(Context $context, $value)
{
// add "epsilon" to ensure numbers like 1.000000005 (represented as 1.000000004999....) are properly rounded...
return $context->numPrecision === null ? $value : Math::toFixed($value + 2.0E-16, $context->numPrecision);
}
/**
* Returns the color as HEX string (when transparency present, in RGBA model)
*
* @param boolean $compress Compress the color?
* @param boolean $canShorten Can the color be shortened if possible?
* @return string
*/
public function toString($compress = false, $canShorten = false)
{
if ($this->isTransparentKeyword) {
return 'transparent';
}
if ($this->originalForm) {
return $this->originalForm;
}
$alpha = Math::toFixed($this->alpha + 2.0E-16, 8);
if ($alpha < 1) {
$fixedRGB = $this->getFixedRGB();
return sprintf('rgba(%s)', join($compress ? ',' : ', ', [$fixedRGB[0], $fixedRGB[1], $fixedRGB[2], Math::clean($this->clamp($alpha, 1))]));
}
// prevent named colors
if ($this->keyword) {
return $this->keyword;
}
$color = [];
foreach ($this->getFixedRgb() as $i) {
$color[] = str_pad(dechex(Math::round($i)), 2, '0', STR_PAD_LEFT);
}
$color = join('', $color);
// convert color to short format
if ($canShorten && $color[0] === $color[1] && $color[2] === $color[3] && $color[4] === $color[5]) {
$color = $color[0] . $color[2] . $color[4];
}
$color = '#' . $color;
return $color;
}