/**
 * Copyright 2010-2013 Jingjing Li.
 *
 * This file is part of jplot2d.
 *
 * jplot2d is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or any later version.
 *
 * jplot2d is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with jplot2d. If not, see .
 */
package org.jplot2d.element.impl;

import java.awt.geom.Dimension2D;
import java.awt.geom.Point2D;
import java.lang.reflect.Method;

/**
 * @author Jingjing Li
 * 
 */
public abstract class GraphImpl extends ComponentImpl implements GraphEx {

	private static Point2D LOCATION = new Point2D.Double();

	protected GraphImpl() {

	}

	public InvokeStep getInvokeStepFormParent() {
		if (parent == null) {
			return null;
		}

		Method method;
		try {
			method = LayerEx.class.getMethod("getGraph", Integer.TYPE);
		} catch (NoSuchMethodException e) {
			throw new Error(e);
		}
		return new InvokeStep(method, getParent().indexOf(this));
	}

	public LayerEx getParent() {
		return (LayerEx) super.getParent();
	}

	public Point2D getLocation() {
		return LOCATION;
	}

	public void setLocation(double locX, double locY) {
		throw new UnsupportedOperationException();
	}

	public Dimension2D getSize() {
		if (getParent() == null) {
			return null;
		} else {
			return getParent().getSize();
		}
	}

	public void thisEffectiveFontChanged() {
		// font change has no effect
	}

}