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/*
* Copyright (c) 2014 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.net4j.internal.util.table;
/**
* @author Eike Stepper
*/
public final class Coordinate implements Comparable<Coordinate>
{
public static final Coordinate ZERO = new Coordinate(0, 0);
public final int col;
public final int row;
public Coordinate(int col, int row)
{
if (col < 0)
{
throw new IllegalArgumentException("Column is negative");
}
if (row < 0)
{
throw new IllegalArgumentException("Row is negative");
}
this.col = col;
this.row = row;
}
public Coordinate offset(int cols, int rows)
{
return new Coordinate(col + cols, row + rows);
}
@Override
public int hashCode()
{
final int prime = 31;
int result = 1;
result = prime * result + col;
result = prime * result + row;
return result;
}
@Override
public boolean equals(Object obj)
{
if (this == obj)
{
return true;
}
if (obj == null)
{
return false;
}
if (Coordinate.class != obj.getClass())
{
return false;
}
Coordinate other = (Coordinate)obj;
return col == other.col && row == other.row;
}
public int compareTo(Coordinate o)
{
int result = row - o.row;
if (result == 0)
{
return col - o.col;
}
return result;
}
@Override
public String toString()
{
return "[" + col + "," + row + "]";
}
}
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