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src
core
graphicsEngine
callbacks
WGEPropertyTransformationCallback.h
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//---------------------------------------------------------------------------
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//
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// Project: OpenWalnut ( http://www.openwalnut.org )
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//
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// Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
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// For more information see http://www.openwalnut.org/copying
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//
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// This file is part of OpenWalnut.
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//
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// OpenWalnut is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// OpenWalnut is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
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//
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//---------------------------------------------------------------------------
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#ifndef WGEPROPERTYTRANSFORMATIONCALLBACK_H
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#define WGEPROPERTYTRANSFORMATIONCALLBACK_H
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#include <osg/Node>
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#include <osg/TexMat>
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#include <osg/StateAttribute>
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#include <osg/MatrixTransform>
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#include "WGECallbackTraits.h"
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#include "../../common/WProperties.h"
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/**
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* TODO(ebaum): write.
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*/
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template
<
typename
ParentType = osg::Node,
typename
TargetType = osg::MatrixTransform >
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class
WGEPropertyTransformationCallback
:
public
WGECallbackTraits
< ParentType >
::CallbackType
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{
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public
:
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/**
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* Default constructor.
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*
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* \param prop the property holding the matrix to use.
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*/
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explicit
WGEPropertyTransformationCallback
( WPropMatrix4X4 prop );
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/**
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* Destructor.
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*/
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virtual
~WGEPropertyTransformationCallback
();
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/**
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* This operator gets called by OSG every update cycle. It calls the specified functor.
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*
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* \param handled the osg node, stateset or whatever
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* \param nv the node visitor
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*/
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virtual
void
operator()
(
typename
WGECallbackTraits< ParentType >::HandledType
* handled, osg::NodeVisitor* nv );
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protected
:
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private
:
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/**
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* The property controlling the callback
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*/
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WPropMatrix4X4
m_prop
;
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};
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template
<
typename
ParentType,
typename
TargetType >
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WGEPropertyTransformationCallback< ParentType, TargetType >::WGEPropertyTransformationCallback
( WPropMatrix4X4 prop ):
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WGECallbackTraits
< ParentType >::
CallbackType
(),
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m_prop( prop )
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{
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// initialize members
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}
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template
<
typename
ParentType,
typename
TargetType >
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WGEPropertyTransformationCallback< ParentType, TargetType >::~WGEPropertyTransformationCallback
()
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{
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// cleanup
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}
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template
<
typename
ParentType,
typename
TargetType >
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void
WGEPropertyTransformationCallback< ParentType, TargetType >::operator()
(
typename
WGECallbackTraits< ParentType >::HandledType
* handled,
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osg::NodeVisitor* nv )
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{
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TargetType* m =
dynamic_cast<
TargetType*
>
( handled );
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if
( m )
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{
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m->setMatrix( m_prop->get() );
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}
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WGECallbackTraits< ParentType >::traverse
(
this
, handled, nv );
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}
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#endif // WGEPROPERTYTRANSFORMATIONCALLBACK_H
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