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95 lines
3.3 KiB
PHP
95 lines
3.3 KiB
PHP
<?php
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namespace Sabberworm\CSS\Value;
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use Sabberworm\CSS\Parsing\ParserState;
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class Color extends CSSFunction {
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public function __construct($aColor, $iLineNo = 0) {
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parent::__construct(implode('', array_keys($aColor)), $aColor, ',', $iLineNo);
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}
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public static function parse(ParserState $oParserState) {
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$aColor = array();
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if ($oParserState->comes('#')) {
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$oParserState->consume('#');
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$sValue = $oParserState->parseIdentifier(false);
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if ($oParserState->strlen($sValue) === 3) {
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$sValue = $sValue[0] . $sValue[0] . $sValue[1] . $sValue[1] . $sValue[2] . $sValue[2];
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} else if ($oParserState->strlen($sValue) === 4) {
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$sValue = $sValue[0] . $sValue[0] . $sValue[1] . $sValue[1] . $sValue[2] . $sValue[2] . $sValue[3] . $sValue[3];
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}
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if ($oParserState->strlen($sValue) === 8) {
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$aColor = array(
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'r' => new Size(intval($sValue[0] . $sValue[1], 16), null, true, $oParserState->currentLine()),
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'g' => new Size(intval($sValue[2] . $sValue[3], 16), null, true, $oParserState->currentLine()),
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'b' => new Size(intval($sValue[4] . $sValue[5], 16), null, true, $oParserState->currentLine()),
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'a' => new Size(round(self::mapRange(intval($sValue[6] . $sValue[7], 16), 0, 255, 0, 1), 2), null, true, $oParserState->currentLine())
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);
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} else {
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$aColor = array(
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'r' => new Size(intval($sValue[0] . $sValue[1], 16), null, true, $oParserState->currentLine()),
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'g' => new Size(intval($sValue[2] . $sValue[3], 16), null, true, $oParserState->currentLine()),
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'b' => new Size(intval($sValue[4] . $sValue[5], 16), null, true, $oParserState->currentLine())
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);
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}
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} else {
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$sColorMode = $oParserState->parseIdentifier(true);
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$oParserState->consumeWhiteSpace();
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$oParserState->consume('(');
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$iLength = $oParserState->strlen($sColorMode);
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for ($i = 0; $i < $iLength; ++$i) {
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$oParserState->consumeWhiteSpace();
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$aColor[$sColorMode[$i]] = Size::parse($oParserState, true);
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$oParserState->consumeWhiteSpace();
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if ($i < ($iLength - 1)) {
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$oParserState->consume(',');
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}
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}
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$oParserState->consume(')');
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}
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return new Color($aColor, $oParserState->currentLine());
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}
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private static function mapRange($fVal, $fFromMin, $fFromMax, $fToMin, $fToMax) {
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$fFromRange = $fFromMax - $fFromMin;
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$fToRange = $fToMax - $fToMin;
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$fMultiplier = $fToRange / $fFromRange;
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$fNewVal = $fVal - $fFromMin;
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$fNewVal *= $fMultiplier;
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return $fNewVal + $fToMin;
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}
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public function getColor() {
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return $this->aComponents;
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}
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public function setColor($aColor) {
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$this->setName(implode('', array_keys($aColor)));
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$this->aComponents = $aColor;
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}
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public function getColorDescription() {
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return $this->getName();
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}
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public function __toString() {
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return $this->render(new \Sabberworm\CSS\OutputFormat());
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}
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public function render(\Sabberworm\CSS\OutputFormat $oOutputFormat) {
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// Shorthand RGB color values
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if($oOutputFormat->getRGBHashNotation() && implode('', array_keys($this->aComponents)) === 'rgb') {
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$sResult = sprintf(
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'%02x%02x%02x',
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$this->aComponents['r']->getSize(),
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$this->aComponents['g']->getSize(),
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$this->aComponents['b']->getSize()
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);
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return '#'.(($sResult[0] == $sResult[1]) && ($sResult[2] == $sResult[3]) && ($sResult[4] == $sResult[5]) ? "$sResult[0]$sResult[2]$sResult[4]" : $sResult);
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}
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return parent::render($oOutputFormat);
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}
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}
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