/*******************************************************************************
 * 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.hex;

public interface HexModel {
	/** Registers a listener for changes to the values. */
	public void addHexModelListener(HexModelListener l);

	/** Fills a series of values with the same value. */
	public void fill(long start, long length, int value);

	/** Returns the value at the given address. */
	public int get(long address);

	/** Returns the offset of the initial value to be displayed. */
	public long getFirstOffset();

	/** Returns the number of values to be displayed. */
	public long getLastOffset();

	/** Returns number of bits in each value. */
	public int getValueWidth();

	/** Unregisters a listener for changes to the values. */
	public void removeHexModelListener(HexModelListener l);

	/** Changes the value at the given address. */
	public void set(long address, int value);

	/** Changes a series of values at the given addresses. */
	public void set(long start, int[] values);
}