Package com.github.sommeri.less4j.core.ast

Examples of com.github.sommeri.less4j.core.ast.ColorExpression

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    double alpha = decodeColorPart(string, 3);
    if (!Double.isNaN(alpha))
      return new ColorWithAlphaExpression(token, string, red, green, blue, alpha);

    return new ColorExpression(token, string, red, green, blue);
  }
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    return new ParenthesesExpression(first, parentBuilder.handleExpression(first.getChild(1)));
  }

  private Expression buildFromColorHash(HiddenTokenAwareTree token, HiddenTokenAwareTree first) {
    String text = first.getText();
    ColorExpression parsedColor = ConversionUtils.parseColor(token, text);
    if (parsedColor == null) {
      FaultyExpression faultyExpression = new FaultyExpression(token);
      problemsHandler.notAColor(faultyExpression, text);
      return faultyExpression;
    }
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  static double clamp(double val) {
    return Math.min(1, Math.max(0, val));
  }

  static ColorExpression rgb(double r, double g, double b, HiddenTokenAwareTree token) {
    return new ColorExpression(token, r, g, b);
  }
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abstract class AbstractColorAmountFunction extends AbstractColorFunction {

  @Override
  protected Expression evaluate(List<Expression> splitParameters, ProblemsHandler problemsHandler, FunctionExpression functionCall, HiddenTokenAwareTree token) {
    ColorExpression color = (ColorExpression) splitParameters.get(0);
    NumberExpression amount = (NumberExpression) splitParameters.get(1);

    return evaluate(color, amount, token);
  }
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    if (!isLast && !isFirst && position == null) {
      problemsHandler.errorSvgGradientArgument(errorNode);
      return false;
    }

    ColorExpression color = (ColorExpression) colorE;
    String positionValue = position != null ? toCss(position) : isFirst ? "0%" : "100%";
    returner.append("<stop offset=\"").append(positionValue);
    returner.append("\" stop-color=\"").append(color.getValueInHexadecimal());
    returner.append("\"");
    if (color.hasAlpha()) {
      returner.append(" stop-opacity=\"").append(PrintUtils.formatNumber(color.getAlpha())).append("\"");
    }
    returner.append("/>");
    return true;
  }
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class Alpha extends CssNameClashMultiParameterFunction {

  @Override
  public Expression evaluate(List<Expression> parameters, ProblemsHandler problemsHandler, FunctionExpression call, Expression evaluatedParameter) {
    ColorExpression color = (ColorExpression) parameters.get(0);
    return new NumberExpression(call.getUnderlyingStructure(), Double.valueOf(color.getAlpha()), "", null, Dimension.NUMBER);
  }
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    if (firstParam.getType() != ASTCssNodeType.COLOR_EXPRESSION) {
      UnknownFunction unknownFunction = new UnknownFunction();
      return unknownFunction.evaluate(splitParameters, problemsHandler, call, evaluatedParameter);
    }

    ColorExpression color = (ColorExpression) firstParam;
    NumberExpression amount = (NumberExpression) splitParameters.get(1);

    HSLAValue hsla = AbstractColorFunction.toHSLA(color);
    apply(amount, hsla);
    return AbstractColorFunction.hsla(hsla, call.getUnderlyingStructure());
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//
class Mix extends AbstractColorFunction {

  @Override
  protected Expression evaluate(List<Expression> splitParameters, ProblemsHandler problemsHandler, FunctionExpression functionCall, HiddenTokenAwareTree token) {
    ColorExpression color1 = (ColorExpression) splitParameters.get(0);
    ColorExpression color2 = (ColorExpression) splitParameters.get(1);
    NumberExpression weight = splitParameters.size() > 2 ? (NumberExpression) splitParameters.get(2) : null;

    if (weight == null) {
      weight = new NumberExpression(token, Double.valueOf(50), "%", null, Dimension.PERCENTAGE);
    }
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      return unknownFunction.evaluate(splitParameters, problemsHandler, call, evaluatedParameter);
    }

    HiddenTokenAwareTree token = call.getUnderlyingStructure();

    ColorExpression color = (ColorExpression) splitParameters.get(0);
    ColorExpression dark = (ColorExpression) (splitParameters.size() > 1 ? splitParameters.get(1) : new ColorExpression(token, 0, 0, 0));
    ColorExpression light = (ColorExpression) (splitParameters.size() > 2 ? splitParameters.get(2) : new ColorExpression(token, 255, 255, 255));
    NumberExpression threshold = (NumberExpression) (splitParameters.size() > 3 ? splitParameters.get(3) : new NumberExpression(token, 43.0, "%", null, Dimension.PERCENTAGE));
    double thresholdValue = AbstractColorFunction.number(threshold);

    if (((0.2126 * (color.getRed() / 255) + 0.7152 * (color.getGreen() / 255) + 0.0722 * (color.getBlue() / 255)) * color.getAlpha()) < thresholdValue) {
      return light;
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  protected Expression evaluate(List<Expression> splitParameters, ProblemsHandler problemsHandler, FunctionExpression functionCall, HiddenTokenAwareTree token) {
    CssString string = (CssString) splitParameters.get(0);
    String text = string.getValue();

    //this does a bit more then less.js: it is able to parse named colors
    ColorExpression parsedColor = ConversionUtils.parseColor(token, text);
    if (parsedColor == null) {
      FaultyExpression faultyExpression = new FaultyExpression(token);
      problemsHandler.notAColor(faultyExpression, text);
    }
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Related Classes of com.github.sommeri.less4j.core.ast.ColorExpression

  • com.github.sommeri.less4j.core.compiler.expressions.AbstractColorAmountFunction
  • com.github.sommeri.less4j.core.compiler.expressions.AbstractColorFunction
  • com.github.sommeri.less4j.core.compiler.expressions.Alpha
  • com.github.sommeri.less4j.core.compiler.expressions.Color
  • com.github.sommeri.less4j.core.compiler.expressions.ColorsCalculator
  • com.github.sommeri.less4j.core.compiler.expressions.Contrast
  • com.github.sommeri.less4j.core.compiler.expressions.Mix
  • com.github.sommeri.less4j.core.compiler.expressions.Saturate
  • com.github.sommeri.less4j.core.compiler.expressions.SvgGradient
  • com.github.sommeri.less4j.core.parser.ConversionUtils
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