/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: Array2D.java
* Written by: Christian Harnisch, Ingo Besenfelder, Michael Neumann (Team 3)
*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
*
* 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.routing.experimentalAStar3.datastructures;
import java.util.Vector;
public class Array2D<T>
{
private int wx, wy;
private int sz;
private Vector<T> field;
private T defaultValue;
public Array2D(int wx, int wy, T defaultValue, boolean fillWithDefault)
{
this.wx = wx;
this.wy = wy;
this.sz = this.wx * this.wy;
this.defaultValue = defaultValue;
this.field = new Vector<T>(this.sz);
this.field.setSize(this.sz);
if (fillWithDefault)
fillWith(defaultValue);
}
public boolean inRange(int x, int y)
{
return (x >= 0 && y >= 0 && x < this.wx && y < this.wy);
}
/*
* Return -1 on error.
*/
private int getOff(int x, int y)
{
if (!inRange(x, y))
return -1;
int off = x + y * this.wx;
assert (off >= 0 && off < this.sz);
return off;
}
public T getAt(int x, int y)
{
int off = getOff(x, y);
if (off == -1)
return this.defaultValue;
else
return this.field.elementAt(off);
}
public void setAt(int x, int y, T newValue)
{
int off = getOff(x, y);
assert (off != -1);
this.field.setElementAt(newValue, off);
}
public void fillWith(T fillElement)
{
for (int i = 0; i < this.sz; ++i)
this.field.setElementAt(fillElement, i);
}
public Array2D<T> clone()
{
Array2D<T> n = new Array2D<T>(this.wx, this.wy, this.defaultValue, false);
for (int i = 0; i < this.sz; ++i)
n.field.setElementAt(this.field.elementAt(i), i);
return n;
}
public int getWidthX()
{
return this.wx;
}
public int getWidthY()
{
return this.wy;
}
}