/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: OverlapDirection.java
* Written by Team 7: Felix Schmidt, Daniel Lechner
*
* This code has been developed at the Karlsruhe Institute of Technology (KIT), Germany,
* as part of the course "Multicore Programming in Practice: Tools, Models, and Languages".
* Contact instructor: Dr. Victor Pankratius (pankratius@ipd.uka.de)
*
* Copyright (c) 2010 Sun Microsystems and Static Free Software
*
* Electric(tm) 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.
*
* Electric(tm) 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 Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, Mass 02111-1307, USA.
*/
package com.sun.electric.tool.placement.forceDirected2.forceDirected;
/**
* Parallel Placement
*
* The direction of an overlapping
*/
public enum OverlapDirection {
north, northeast, east, southeast, south, southwest, west, northwest, none;
public static boolean isEast(OverlapDirection direction) {
boolean result = false;
if ((direction == OverlapDirection.east) || (direction == OverlapDirection.northeast) || (direction == OverlapDirection.southeast)) {
result = true;
}
return result;
}
public static boolean isNorth(OverlapDirection direction) {
boolean result = false;
if ((direction == OverlapDirection.north) || (direction == OverlapDirection.northeast) || (direction == OverlapDirection.northwest)) {
result = true;
}
return result;
}
public static boolean isSouth(OverlapDirection direction) {
boolean result = false;
if ((direction == OverlapDirection.south) || (direction == OverlapDirection.southeast) || (direction == OverlapDirection.southwest)) {
result = true;
}
return result;
}
public static boolean isWest(OverlapDirection direction) {
boolean result = false;
if ((direction == OverlapDirection.west) || (direction == OverlapDirection.northwest) || (direction == OverlapDirection.southwest)) {
result = true;
}
return result;
}
/**
* mix directions (e.g. north and east --> northeast, south and west -->
* southwest)
*
* @param dir1
* @param dir2
*/
public static OverlapDirection mixDirections(OverlapDirection dir1, OverlapDirection dir2) {
if (dir1 == dir2) {
return dir1;
}
if (dir1 == none) {
return dir2;
}
if (dir2 == none) {
return dir1;
}
if ((dir1 == north) || (dir2 == north)) {
if ((dir2 == west) || (dir1 == west)) {
return northwest;
} else {
return northeast;
}
} else {
if ((dir2 == west) || (dir1 == west)) {
return southwest;
} else {
return southeast;
}
}
}
}