//
// $Id$
// From Philippe Le Hegaret (Philippe.Le_Hegaret@sophia.inria.fr)
//
// (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.CssValue;

/**
 * Be careful, this is not a CSS1 property !
 *
 * @version $Revision$
 */
public class CssBorderTopColorATSC extends CssProperty {

    CssBorderFaceColorATSC face;

    /**
     * Create a new CssBorderTopColorATSC
     */
    public CssBorderTopColorATSC() {
        face = new CssBorderFaceColorATSC();
    }

    /**
     * Create a new CssBorderTopColorATSC with an another CssBorderFaceColorATSC
     *
     * @param another The another side.
     */
    public CssBorderTopColorATSC(CssBorderFaceColorATSC another) {
        setByUser();

        face = another;
    }

    /**
     * Create a new CssBorderTopColorATSC
     *
     * @param expression The expression fir this property
     * @throws InvalidParamException Values are incorrect
     */
    public CssBorderTopColorATSC(ApplContext ac, CssExpression expression,
                                 boolean check) throws InvalidParamException {

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

        setByUser();
        face = new CssBorderFaceColorATSC(ac, expression);
    }

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

    /**
     * Returns the value of this property
     */
    public Object get() {
        return face;
    }

    /**
     * Returns the color
     */
    public CssValue getColor() {
        if (face != null) {
            return face.getColor();
        } else {
            return null;
        }
    }

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

    /**
     * Returns the name of this property
     */
    public String getPropertyName() {
        return "border-top-color";
    }

    /**
     * Add this property to the CssStyle.
     *
     * @param style The CssStyle
     */
    public void addToStyle(ApplContext ac, CssStyle style) {
        CssBorderTopATSC top = ((ATSCStyle) style).cssBorderATSC.top;
        if (top.color != null)
            style.addRedefinitionWarning(ac, this);
        top.color = 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).getBorderTopColorATSC();
        } else {
            return ((ATSCStyle) style).cssBorderATSC.getTop().color;
        }
    }

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

}