w3c.css.properties.atsc.XHeightATSC Maven / Gradle / Ivy

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//
// $Id$
// From Philippe Le Hegaret ([email protected])
//
// (c) COPYRIGHT MIT and INRIA, 1997.
// Please first read the full copyright statement in file COPYRIGHT.html
/*
 */
package org.w3c.css.properties.atsc;

import org.w3c.css.parser.CssStyle;
import org.w3c.css.properties.css.CssProperty;
import org.w3c.css.util.ApplContext;
import org.w3c.css.util.InvalidParamException;
import org.w3c.css.values.CssExpression;
import org.w3c.css.values.CssNumber;
import org.w3c.css.values.CssValue;

/**
 */
public class XHeightATSC extends CssProperty {

    CssValue value;

    /**
     * Create a new XHeightATSC
     */
    public XHeightATSC() {
        // nothing to do
    }

    /**
     * Creates a new XHeightATSC
     *
     * @param expression the unicode em
     * @throws InvalidParamException values are incorrect
     */
    public XHeightATSC(ApplContext ac, CssExpression expression,
                       boolean check) throws InvalidParamException {

        if (check && expression.getCount() > 1) {
            throw new InvalidParamException("unrecognize", ac);
        }

        CssValue val = expression.getValue();
        setByUser();

        ac.getFrame().addWarning("atsc", val.toString());

        if (val instanceof CssNumber) {
            value = val;
            expression.next();
        } else {
            throw new InvalidParamException("value", expression.getValue(),
                    getPropertyName(), ac);
        }
    }

    public XHeightATSC(ApplContext ac, CssExpression expression)
            throws InvalidParamException {
        this(ac, expression, false);
    }

    /**
     * Returns the current value
     */
    public Object get() {
        return value;
    }

    /**
     * Returns a string representation of the object.
     */
    public String toString() {
        return value.toString();
    }

    /**
     * Returns the name of this property
     */
    public String getPropertyName() {
        return "x-height";
    }

    /**
     * Add this property to the CssStyle.
     *
     * @param style The CssStyle
     */
    public void addToStyle(ApplContext ac, CssStyle style) {
        ATSCStyle style0 = (ATSCStyle) style;
        if (style0.xHeightATSC != null) {
            style0.addRedefinitionWarning(ac, this);
        }
        style0.xHeightATSC = this;
    }

    /**
     * Get this property in the style.
     *
     * @param style   The style where the property is
     * @param resolve if true, resolve the style to find this property
     */
    public CssProperty getPropertyInStyle(CssStyle style, boolean resolve) {
        if (resolve) {
            return ((ATSCStyle) style).getXHeightATSC();
        } else {
            return ((ATSCStyle) style).xHeightATSC;
        }
    }

    /**
     * Compares two properties for equality.
     *
     * @param value The other property.
     */
    public boolean equals(CssProperty property) {
        // @@TODO
        return false;
    }

    /**
     * Is the value of this property is a default value.
     * It is used by all macro for the function print
     */
    public boolean isDefault() {
        return false;
    }

}