001 package net.sf.cpsolver.ifs.example.rpp;
002
003 import net.sf.cpsolver.ifs.model.*;
004
005 /**
006 * Location (value, i.e., a single placement of the rectangle). Location encodes X and Y
007 * coordinate.
008 *
009 * @version
010 * IFS 1.1 (Iterative Forward Search)<br>
011 * Copyright (C) 2006 Tomáš Müller<br>
012 * <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
013 * Lazenska 391, 76314 Zlin, Czech Republic<br>
014 * <br>
015 * This library is free software; you can redistribute it and/or
016 * modify it under the terms of the GNU Lesser General Public
017 * License as published by the Free Software Foundation; either
018 * version 2.1 of the License, or (at your option) any later version.
019 * <br><br>
020 * This library is distributed in the hope that it will be useful,
021 * but WITHOUT ANY WARRANTY; without even the implied warranty of
022 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
023 * Lesser General Public License for more details.
024 * <br><br>
025 * You should have received a copy of the GNU Lesser General Public
026 * License along with this library; if not, write to the Free Software
027 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
028 */
029 public class Location extends Value {
030 private int iX, iY;
031 /**
032 * Constructor
033 * @param rectangle parent variable
034 * @param x x coordinate
035 * @param y y coordinate
036 */
037 public Location(Rectangle rectangle, int x, int y) {
038 super(rectangle);
039 iX = x;
040 iY = y;
041 }
042
043 /** Gets x coordinate */
044 public int getX() {
045 return iX;
046 }
047
048 /** Gets y coordinate */
049 public int getY() {
050 return iY;
051 }
052
053 /** Compare two coordinates. It is based on comparison of the parent rectangle and x,y coordinates */
054 public boolean equals(Object object) {
055 if (object == null || !(object instanceof Location)) {
056 return false;
057 }
058 Location location = (Location) object;
059
060 return (variable().equals(location.variable()) && location.getX() == getX() && location.getY() == getY());
061 }
062
063 /** String representation (for debugging and printing purposes).
064 * For example, rect43=[12,10] where rect43 is the name of the parent rectangle and [12,10] is the location.
065 */
066 public String toString() {
067 return variable().getName() + "=[" + getX() + "," + getY() + "]";
068 }
069
070 /** Location's name. E.g., [12,10] where x=12 and y=10.*/
071 public String getName() {
072 return "[" + getX() + "," + getY() + "]";
073 }
074
075 /** Returns true if the given location intersects with this location */
076 public boolean hasIntersection(Location anotherLocation) {
077 if (getX() + ((Rectangle) variable()).getWidth() <= anotherLocation.getX()) {
078 return false;
079 }
080 if (getY() + ((Rectangle) variable()).getHeight() <= anotherLocation.getY()) {
081 return false;
082 }
083 if (anotherLocation.getX() + ((Rectangle) anotherLocation.variable()).getWidth() <= getX()) {
084 return false;
085 }
086 if (anotherLocation.getY() + ((Rectangle) anotherLocation.variable()).getHeight() <= getY()) {
087 return false;
088 }
089 return true;
090 }
091 }