/*******************************************************************************
 * This file is part of logisim-evolution.
 *
 *   logisim-evolution is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   logisim-evolution 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 Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with logisim-evolution.  If not, see <http://www.gnu.org/licenses/>.
 *
 *   Original code by Carl Burch (http://www.cburch.com), 2011.
 *   Subsequent modifications by :
 *     + Haute École Spécialisée Bernoise
 *       http://www.bfh.ch
 *     + Haute École du paysage, d'ingénierie et d'architecture de Genève
 *       http://hepia.hesge.ch/
 *     + Haute École d'Ingénierie et de Gestion du Canton de Vaud
 *       http://www.heig-vd.ch/
 *   The project is currently maintained by :
 *     + REDS Institute - HEIG-VD
 *       Yverdon-les-Bains, Switzerland
 *       http://reds.heig-vd.ch
 *******************************************************************************/

package com.cburch.logisim.gui.main;

import com.cburch.logisim.gui.menu.LogisimMenuItem;

public abstract class EditHandler {
	public static interface Listener {
		void enableChanged(EditHandler handler, LogisimMenuItem action,
				boolean value);
	}

	private Listener listener;

	public abstract void addControlPoint();

	public abstract void computeEnabled();

	public abstract void copy();

	public abstract void cut();

	public abstract void delete();

	public abstract void duplicate();

	public abstract void lower();

	public abstract void lowerBottom();

	public abstract void paste();

	public abstract void raise();

	public abstract void raiseTop();

	public abstract void removeControlPoint();

	public abstract void selectAll();

	protected void setEnabled(LogisimMenuItem action, boolean value) {
		Listener l = listener;
		if (l != null) {
			l.enableChanged(this, action, value);
		}
	}

	public void setListener(Listener listener) {
		this.listener = listener;
	}
}