// XAAL toolkit
// Copyright (C) 2009 Ville Karavirta <vkaravir(a)cs.hut.fi>
//
// This program 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.
//
// This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
package xaal.objects.graphical;

import xaal.objects.Xaal;

public class Square extends Rectangle {

    public Square(Xaal xaalDoc) {
        super(xaalDoc);
    }

    public Square(Xaal xaalDoc, String id) {
        super(xaalDoc, id);
    }

    public void setLength(int length) {
        Coordinate end = new Coordinate(getXaal());
        end.setX(getStartCoordinate().getX() + length);
        end.setY(getStartCoordinate().getY() + length);
        super.setEndCoordinate(end);
    }
    
    /** Only squares are accepted. */
    // TODO Elaborate the doc comment
    public void setEndCoordinate(Coordinate end) {
        if (end.getX() - getStartCoordinate().getX() == end.getY() - getStartCoordinate().getY())
            super.setEndCoordinate(end);
    }
    
    public boolean equalsIgnoreId(GraphicalPrimitive gp) {
        // just to make it explicit
        return super.equalsIgnoreId(gp);
    }
}