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// (c) copyright 2006 by eXXcellent solutions, Ulm. Author: bschmid

package org.wings.border;

import java.awt.*;

import org.wings.SComponent;
import org.wings.style.CSSAttributeSet;

/**
 * If a default border is set, CGs will not write any inline borders and paddings. Thus the styles as defined in the
 * stylesheet take effect.
 * @author Benjamin Schmid 
 */
public class SDefaultBorder
    extends SAbstractBorder
{
    public static final SDefaultBorder INSTANCE = new SDefaultBorder();

    private boolean locked = false;

    private SDefaultBorder() {
        locked = true;
    }

    /**
     * The default border is not modifyable, thus no component needs to be informed.
     */
    @Override
    public void setComponent(SComponent newComponent) {
    }

    /**
     * Return no attributes.
     */
    @Override
    public CSSAttributeSet getAttributes() {
        return null;
    }

    @Override
    public void setInsets(Insets insets) {
        if (locked)
            throw new IllegalStateException("DefaultBorder is not configurable");
    }

    @Override
    public void setColor(Color color, int position) {
        if (locked)
            throw new IllegalStateException("DefaultBorder is not configurable");
    }

    @Override
    public void setThickness(int thickness, int position) {
        if (locked)
            throw new IllegalStateException("DefaultBorder is not configurable");
    }

    @Override
    public void setStyle(String style, int position) {
        if (locked)
            throw new IllegalStateException("DefaultBorder is not configurable");
    }
}