/*
* 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.core.objectmatrix.calculation;
import org.ujmp.core.Coordinates;
import org.ujmp.core.Matrix;
public class SetContent extends AbstractObjectCalculation {
private static final long serialVersionUID = 2014347270412520806L;
private final Matrix newContent;
private final long[] position;
public SetContent(Matrix source, Matrix newContent, long... position) {
super(source);
this.newContent = newContent;
this.position = position;
}
public Object getObject(long... coordinates) {
if (!Coordinates.isGreaterOrEqual(coordinates, position)) {
return getSource().getAsObject(coordinates);
}
long[] c = Coordinates.minus(coordinates, position);
if (Coordinates.isSmallerThan(c, newContent.getSize())) {
return newContent.getAsObject(c);
} else {
return getSource().getAsObject(coordinates);
}
}
// must be overridden, because only the new part has to be calculated and
// not the whole matrix
public Matrix calcOrig() {
if (!Coordinates.equals(getSource().getSize(), getSize())) {
throw new RuntimeException(
"Cannot change Matrix size. Use calc(Ret.NEW) or calc(Ret.LINK) instead.");
}
long[] newCoordinates = new long[position.length];
for (long[] c : newContent.allCoordinates()) {
Coordinates.plus(newCoordinates, position, c);
getSource().setAsObject(getObject(newCoordinates), newCoordinates);
}
getSource().fireValueChanged();
return getSource();
}
}