package jogamp.opengl.glu.nurbs;
/*
** License Applicability. Except to the extent portions of this file are
** made subject to an alternative license as permitted in the SGI Free
** Software License B, Version 2.0 (the "License"), the contents of this
** file are subject only to the provisions of the License. You may not use
** this file except in compliance with the License. You may obtain a copy
** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
**
** http://oss.sgi.com/projects/FreeB
**
** Note that, as provided in the License, the Software is distributed on an
** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
**
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
**
** Additional Notice Provisions: The application programming interfaces
** established by SGI in conjunction with the Original Code are The
** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
** Window System(R) (Version 1.3), released October 19, 1998. This software
** was created using the OpenGL(R) version 1.2.1 Sample Implementation
** published by SGI, but has not been independently verified as being
** compliant with the OpenGL(R) version 1.2.1 Specification.
*/
/**
* Class holding list of Mapdescs
* @author Tomáš Hráský
*
*/
public class Maplist {
/**
* Head of linked list
*/
private Mapdesc maps;
/**
* Backend class
* private final Backend backend;
*/
/**
* Makes new Maplist
*/
public Maplist(/* final Backend backend */) {
// this.backend = backend;
}
/**
* Sets linked list beginning to null
*/
public void initialize() {
// TODO mapdespool.clear ?
maps = null;
}
/**
* Defines new Mapdesc if it is not defined and appends it to linked list
* @param type map type
* @param rational is map rational
* @param ncoords number of coords
*/
public void define(final int type, final int rational, final int ncoords) {
// DONE
final Mapdesc m = locate(type);
assert (m == null || (m.isrational == rational && m.ncoords == ncoords));
add(type, rational, ncoords);
}
/**
* Adds new Mapdesc to linked list
* @param type map type
* @param rational is map rational
* @param ncoords number of coords
*/
private void add(final int type, final int rational, final int ncoords) {
// DONE
final Mapdesc map = new Mapdesc(type, rational, ncoords);
if (maps == null) {
maps = map;
} else {
map.next = maps;
maps = map;
}
}
/**
* Tries to find Mapdesc in linked list
* @param type map type
* @return Mapdesc of type or null if there is no such map
*/
public Mapdesc locate(final int type) {
// DONE
Mapdesc m = null;
for (m = maps; m != null; m = m.next)
if (m.getType() == type)
break;
return m;
}
/**
* Alias for locate
* @param type maptype
* @return Mapdesc of type or null if there is no such map
*/
public Mapdesc find(final int type) {
return locate(type);
}
}