/**
* Copyright (c) 2003-2009, Xith3D Project Group all rights reserved.
*
* Portions based on the Java3D interface, Copyright by Sun Microsystems.
* Many thanks to the developers of Java3D and Sun Microsystems for their
* innovation and design.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the 'Xith3D Project Group' nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) A
* RISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE
*/
package org.xith3d.render.states.units;
import org.xith3d.render.states.StateMap;
import org.xith3d.render.states.StateUnit;
import org.xith3d.scenegraph.LineAttributes;
/**
* The line attributes shader encapsulates the Java3d standard LineAttributes
* which are attached to an appearance.
*
* @author Yuri Vl. Gushchin
* @author Marvin Froehlich (aka Qudus)
*/
public class LineAttribsStateUnit extends StateUnit
{
public static final int STATE_TYPE = StateMap.newStateType();
private static final StateMap LINE_STATE_MAP = new StateMap();
private static final LineAttribsStateUnit DEFAULT_LINE = new LineAttribsStateUnit( new LineAttributes(), true );
private LineAttributes lineAttribs;
public final LineAttributes getLineAttributes()
{
return ( lineAttribs );
}
/**
* {@inheritDoc}
*/
@Override
public LineAttributes getNodeComponent()
{
return ( lineAttribs );
}
/**
* {@inheritDoc}
*/
@Override
public final boolean isTranslucent()
{
if ( lineAttribs == null )
return ( false );
if ( !lineAttribs.isSortEnabled() )
return ( false );
return ( lineAttribs.isLineAntialiasingEnabled() );
}
/**
* {@inheritDoc}
*/
@Override
public final long getStateId()
{
return ( lineAttribs.getStateId() );
}
/**
* {@inheritDoc}
*/
@Override
public String toString()
{
return ( this.getClass().getSimpleName() + "( state-type: " + getStateType() + ", " + "state-ID: " + getStateId() + " )" );
}
public final void update( LineAttributes la )
{
this.lineAttribs = la;
LINE_STATE_MAP.assignState( lineAttribs );
}
private LineAttribsStateUnit( LineAttributes la, boolean isDefault )
{
super( STATE_TYPE, isDefault );
update( la );
}
public static LineAttribsStateUnit makeLineAttribsStateUnit( LineAttributes la, StateUnit[] cache )
{
if ( la == null )
{
return ( DEFAULT_LINE );
}
else if ( cache[ STATE_TYPE ] != null )
{
final LineAttribsStateUnit stateUnit = ( (LineAttribsStateUnit)cache[ STATE_TYPE ] );
stateUnit.update( la );
return ( stateUnit );
}
else
{
LineAttribsStateUnit stateUnit = new LineAttribsStateUnit( la, false );
cache[ STATE_TYPE ] = stateUnit;
return ( stateUnit );
}
}
}