VRS - The Virtual Rendering System

version 3.3

pickingcallback.h

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/******************************************************************************
 * VRS - The Virtual Rendering System
 * Copyright (C) 2002 Computer Graphics Systems Group at the 
 * Hasso-Plattner-Institute (HPI), Potsdam, Germany.
 *
 * This  library  is  free  software; you can redistribute it and/or  modify it
 * under the terms of the GNU Lesser General Public  License  as  published  by
 * the  Free  Software  Foundation;  either  version 2.1 of the License, or (at
 * your option) any later version. This library  is  distributed  in  the  hope
 * that  it will be useful, but  WITHOUT ANY WARRANTY; without even the implied
 * warranty of  MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE.  See  the
 * GNU Lesser General Public License for more details. You should have received
 * a copy of the GNU Lesser+ General Public License along with this library; if
 * not, write to the FreeSoftware Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA, 02111-1307, USA.
 ******************************************************************************/

// $Id: pickingcallback.h 6014 2007-08-09 07:51:16Z Konstantin_Baumann $
// $Date: 2007-08-09 09:51:16 +0200 (Thu, 09 Aug 2007) $
// $Revision: 6014 $
// $State$
// $Author: Konstantin_Baumann $
//
// $Log$
// Revision 1.8  2005/02/22 18:32:37  baumann
// code cleanup
//
// Revision 1.7  2005/01/03 01:43:10  klimetschek
// - modified win32 project layout, splitted vrs.vcproj into vrs_container, vrs_core, vrs_sg, vrs_image, vrs_opengl and vrs_io
// - removed vrs.vcproj
// minor things:
// - added all glutexamples to vrs4glut.sln
// - fixed some problems in glutexamples
// - removed all project references from all VS projects (using solution wide project dependencies instead)
//
// Revision 1.6  2004/10/28 14:16:01  basch
// Class comment changed (Doxygen style)
//
// Revision 1.5  2004/03/12 16:28:41  baumann
// macros VRS_NAMESPACE_BEGIN/_END expanded and removed
//
// Revision 1.4  2003/02/24 10:05:57  baumann
// changed return type of BehaviorNode::handle() and Manipulator::drag*()
// from "int" to "BehaviorNode::InvalidationHint"
//
// Revision 1.3  2002/11/30 12:04:24  baumann
// allowed to specify NULL for the shapes, which calls back the callback for each hit shape
//
// Revision 1.2  2002/11/25 11:02:27  kirsch
// removed "pragma once" (not portable)
//
// Revision 1.1  2002/11/20 17:43:49  baumann
// initial version of PickingCallback (untested implementation)
//

#ifndef VRS_SG_PICKINGCALLBACK_H
#define VRS_SG_PICKINGCALLBACK_H

#include <vrs/sg/buttonevent.h>
#include <vrs/sg/leafbehavior.h>

namespace VRS {

template<typename T> class Callback1;
template<typename T> class Iterator;
class Condition;
class IntersectionInfo;
class Shape;

class VRS_CORE_API PickingCallback : public LeafBehavior {
    
public:
    PickingCallback(
        const SO<Callback1<IntersectionInfo*> >& callback,
        const SO<Shape>& shape = NULL,
        ButtonEvent::Button button = ButtonEvent::MouseButton1,
        ButtonEvent::Change action = ButtonEvent::Released,
        ButtonEvent::Modifier modifier = ButtonEvent::NoModifier
    );
    PickingCallback(
        const SO<Callback1<IntersectionInfo*> >& callback,
        const SO<Iterator<SO<Shape> > >& shapes,
        ButtonEvent::Button button = ButtonEvent::MouseButton1,
        ButtonEvent::Change action = ButtonEvent::Released,
        ButtonEvent::Modifier modifier = ButtonEvent::NoModifier
    );
    virtual BehaviorNode::InvalidationHint handle(Event* event);

    VRS_TYPEINFO(PickingCallback, LeafBehavior);

private:
    SO<Callback1<IntersectionInfo*> > m_callback;
    SO<Iterator<SO<Shape> > >         m_shapes;
    SO<Condition>                     m_condition;
};

} // namespace VRS

#endif // VRS_SG_PICKINGCALLBACK_H

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