/*
 * Copyright (C) 2008-2015 by Holger Arndt
 *
 * This file is part of the Universal Java Matrix Package (UJMP).
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership and licensing.
 *
 * UJMP 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 2
 * of the License, or (at your option) any later version.
 *
 * UJMP 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with UJMP; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 */

package org.ujmp.gui.actions;

import java.awt.event.KeyEvent;

import javax.swing.Action;
import javax.swing.JComponent;
import javax.swing.JOptionPane;
import javax.swing.KeyStroke;

import org.ujmp.core.Coordinates;
import org.ujmp.core.Matrix;
import org.ujmp.core.doublematrix.DenseDoubleMatrix2D;
import org.ujmp.core.doublematrix.SparseDoubleMatrix2D;
import org.ujmp.core.enums.ValueType;
import org.ujmp.core.interfaces.GUIObject;
import org.ujmp.gui.util.GUIUtil;

public class NewMatrixAction extends AbstractObjectAction {
	private static final long serialVersionUID = 1875202202123788470L;

	public NewMatrixAction(JComponent c, GUIObject o) {
		super(c, o);
		putValue(Action.NAME, "New Matrix...");
		putValue(Action.SHORT_DESCRIPTION, "Creates a new empty matrix");
		putValue(Action.MNEMONIC_KEY, KeyEvent.VK_N);
		putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_N, KeyEvent.CTRL_DOWN_MASK));
	}

	public Object call() {
		try {
			boolean isDense = GUIUtil.getBoolean("Should the matrix be dense?");
			ValueType valueType = ValueType.values()[JOptionPane.showOptionDialog(getComponent(),
					"Select the value type for the new matrix", "Sparse Matrix", JOptionPane.OK_OPTION,
					JOptionPane.QUESTION_MESSAGE, null, ValueType.values(), ValueType.DOUBLE)];
			long[] size = null;
			while (size == null || size.length < 2) {
				String s = JOptionPane.showInputDialog(getComponent(), "Enter the size of the new matrix, e.g. 3x5x6",
						"Dense Matrix", JOptionPane.QUESTION_MESSAGE);
				try {
					size = Coordinates.parseString(s);
				} catch (Exception e) {
				}
			}
			Matrix m = null;
			switch (valueType) {
			case DOUBLE:
				if (isDense) {
					m = DenseDoubleMatrix2D.Factory.zeros(size);
				} else {
					m = SparseDoubleMatrix2D.Factory.zeros(size);
				}
				break;
			default:
				throw new RuntimeException("not implemented");
			}
			return m;
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

}