VRS - The Virtual Rendering System

version 3.3

sceneswitch.h

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 /**********************************************************************
 VRS - The Virtual Rendering System
 Copyright (C) 2001 Computer Graphics Systems Group at the 
 Hasso-Plattner-Institute, 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: sceneswitch.h 6378 2008-06-02 13:30:09Z Konstantin_Baumann $
// $Date: 2008-06-02 15:30:09 +0200 (Mon, 02 Jun 2008) $
// $Revision: 6378 $
// $State$
// $Author: Konstantin_Baumann $
//
// $Log$
// Revision 1.24  2005/09/20 09:36:11  baumann
// visitor mechanism refined
//
// Revision 1.23  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 1.22  2004/10/28 14:16:01  basch
// Class comment changed (Doxygen style)
//
// Revision 1.21  2004/06/22 16:10:36  kirsch
// cleanup
//
// Revision 1.20  2004/03/12 16:28:41  baumann
// macros VRS_NAMESPACE_BEGIN/_END expanded and removed
//
// Revision 1.19  2004/02/16 16:42:08  baumann
// - moved class VRS::SceneNode from "vrs/sg/" to "vrs/"
// - renamed class VRS::SceneGraphVisitor to class VRS::SceneNodeVisitor
//     and moved it from "vrs/sg/" to "vrs/"
//
// Revision 1.18  2004/01/19 11:43:59  baumann
// serialization mechanism improved
//
// Revision 1.17  2003/11/07 14:19:25  kirsch
// removed leading underscore from include guards
//
// Revision 1.16  2003/07/23 18:28:02  baumann
// acceptChildren() implemented for visitor
//
// Revision 1.15  2003/07/22 16:16:03  baumann
// class Visitor renamed to class SceneNodeVisitor
//
// Revision 1.14  2002/10/29 10:32:53  baumann
// macros VRS_CLASSNAME_* and VRS_IMPL_TYPEINFO_* removed
//
// Revision 1.13  2002/10/28 17:12:23  buchholz
//  - traverse-method now returns Visitor::TraversalFlag instead of int
//  - Visitor and travers method do not take an Engine parameter any more
//  - Visitor::visitScene now gets a bool parameter pushHint.
//  - Now visitScene is called twice for each object: One call with
//    pushHint==true, when the object is pushed, one call with pushHint==false,
//    when the object is popped.
//
// Revision 1.12  2002/07/02 15:23:48  baumann
// non-persistent containers now have the prefix NonPersistent, e.g. NonPersistentArray<T>
// persistent containers now have no prefix, e.g. Array<T>
//
// Revision 1.11  2002/03/04 12:04:17  kersting
// directory structure changes
//
// Revision 1.10  2002/03/03 21:44:26  kosta
// VRS_TYPEINFO-macro rewritten
//
// Revision 1.9  2002/02/19 10:34:20  kosta
// undone all changes since 2002-02-15
//
// Revision 1.6  2002/02/12 15:04:34  kosta
// VRS container classes completely rewritten using STL
//
// Revision 1.5  2002/02/05 07:48:26  kosta
// new persistency macros:
//     VRS_SERIALIZABLE(CLASS_NAME);
//     VRS_SERIALIZABLE_ABSTRACT_CLASS(CLASS_NAME);
//     VRS_SERIALIZABLE_NO_SO_CLASS(CLASS_NAME)
//
// Revision 1.4  2002/02/04 13:07:19  kosta
// VRS_SERIALIZABLE macros completely rewritten
//
// Revision 1.3  2002/01/15 16:25:55  kosta
// macros rewritten for a better namespace support
//
// Revision 1.2  2001/11/13 16:36:31  kirsch
// changed line feed to unix style (removed control-M)
//
// Revision 1.1.1.1  2001/06/08 08:09:21  kirsch
// imported alpha-version by olli 
//


#ifndef VRS_SCENESWITCH_H
#define VRS_SCENESWITCH_H

#include <vrs/scenenode.h>

namespace VRS {

class Canvas;
template<typename T> class NonPersistentDeque;

class VRS_CORE_API SceneSwitch : public SceneNode {
    
public:
    SceneSwitch();
    virtual void append(SceneNode* node);
    virtual void prepend(SceneNode* node);
    virtual void insert(int, SceneNode* node);
    virtual void remove(int i);
    virtual void remove(SceneNode* node);
    virtual void clear();

    virtual void setMask(SceneNode* node, Canvas* canvas);
    virtual Canvas* getMask(SceneNode* node) const;

    virtual int childNodes() const;
    virtual SceneNode* childNode(int i) const;

    virtual void evaluate(Engine* engine);
    virtual SceneNodeVisitor::TraversalFlag traverse(SceneNodeVisitor* visitor);
    virtual Bounds boundingBox(Engine* engine) const;
    virtual void install(Engine* engine);
    virtual void deinstall(Engine* engine);
    VRS_TYPEINFO(SceneSwitch, SceneNode);
    VRS_SERIALIZABLE(SceneSwitch);

protected:
    virtual void acceptChildren(std::vector<Visitable*>& appendChildrenHere) const;

private:
    SO<NonPersistentDeque<SO<SceneNode> > > children_;
    SO<NonPersistentDeque<WO<Canvas> > > masks_;
};

} // namespace VRS

#endif // VRS_SCENESWITCH_H

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