/**
* 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.picking;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import org.xith3d.utility.logging.X3DLog;
/**
* This class acts as a proxy for pick events
* and can dispatch the pick events to multiple listeners.
*
* @author Mathias Henze (aka cylab)
*
* @since 1.0
*/
public class PickDispatcher implements PickListener
{
private final LinkedList< PickListener > listeners = new LinkedList< PickListener >();
private final ArrayList< PickListener > copy = new ArrayList< PickListener >( 8 );
public void addPickListener( PickListener listener )
{
listeners.add( listener );
}
public void removePickListener( PickListener listener )
{
listeners.remove( listener );
}
/**
* {@inheritDoc}
*/
public void onObjectPicked( PickResult nearest, Object userObject, long pickTime )
{
copy.addAll( listeners );
for ( int i = 0; i < copy.size(); i++ )
{
PickListener pickListener = copy.get( i );
try
{
pickListener.onObjectPicked( nearest, userObject, pickTime );
}
catch ( Throwable exception )
{
X3DLog.println( exception );
}
}
copy.clear();
}
/**
* {@inheritDoc}
*/
public void onObjectsPicked( List< PickResult > pickResults, Object userObject, long pickTime )
{
copy.addAll( listeners );
for ( int i = 0; i < copy.size(); i++ )
{
PickListener pickListener = copy.get( i );
try
{
pickListener.onObjectsPicked( pickResults, userObject, pickTime );
}
catch( Throwable exception )
{
X3DLog.println( exception );
}
}
copy.clear();
}
/**
* {@inheritDoc}
*/
public void onPickingMissed( Object userObject, long pickTime )
{
copy.addAll( listeners );
for ( int i = 0; i < copy.size(); i++ )
{
PickListener pickListener = copy.get( i );
try
{
pickListener.onPickingMissed( userObject, pickTime );
}
catch ( Throwable exception )
{
X3DLog.println( exception );
}
}
copy.clear();
}
}