VRS - The Virtual Rendering System

version 3.3

filter.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: filter.h 4633 2005-01-03 01:43:11Z klimetschek $
// $Date: 2005-01-03 02:43:11 +0100 (Mon, 03 Jan 2005) $
// $Revision: 4633 $
// $State$
// $Author: klimetschek $
//
// $Log$
// Revision 1.21  2005/01/03 01:43:07  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 1.20  2004/11/05 13:58:09  basch
// Class comment changed (Doxygen style)
//
// Revision 1.19  2004/07/09 09:38:26  kirsch
// Moved check of the filter in engine from techniqueprocessor to scene graph.
// This reduces the number of filter checks for an evaluated shape node in the graph.
//
// Revision 1.18  2004/04/01 12:46:00  kirsch
// cleanup
//
// Revision 1.17  2004/03/16 14:57:39  grabs
// FilterTag is now forward declared and included in cpp file
//
// Revision 1.16  2004/03/12 16:28:38  baumann
// macros VRS_NAMESPACE_BEGIN/_END expanded and removed
//
// Revision 1.15  2004/01/19 11:43:56  baumann
// serialization mechanism improved
//
// Revision 1.14  2004/01/19 07:28:03  baumann
// serialization mechanism improved
//
// Revision 1.13  2003/07/23 17:04:49  baumann
// code cleanup (especially untabified)
//
// Revision 1.12  2002/12/12 12:51:46  baumann
// code cleanup
//
// Revision 1.11  2002/10/29 10:32:52  baumann
// macros VRS_CLASSNAME_* and VRS_IMPL_TYPEINFO_* removed
//
// Revision 1.10  2002/03/03 21:44:24  kosta
// VRS_TYPEINFO-macro rewritten
//
// Revision 1.9  2002/02/19 10:34:08  kosta
// undone all changes since 2002-02-15
//
// Revision 1.6  2002/02/05 07:48:25  kosta
// new persistency macros:
//     VRS_SERIALIZABLE(CLASS_NAME);
//     VRS_SERIALIZABLE_ABSTRACT_CLASS(CLASS_NAME);
//     VRS_SERIALIZABLE_NO_SO_CLASS(CLASS_NAME)
//
// Revision 1.5  2002/02/04 13:07:19  kosta
// VRS_SERIALIZABLE macros completely rewritten
//
// Revision 1.4  2002/01/15 16:25:53  kosta
// macros rewritten for a better namespace support
//
// Revision 1.3  2001/11/13 16:36:30  kirsch
// changed line feed to unix style (removed control-M)
//
// Revision 1.2  2001/07/02 10:14:29  kersting
// changes due to enum definition
//
// Revision 1.1.1.1  2001/06/08 08:09:20  kirsch
// imported alpha-version by olli 
//

#ifndef VRS_FILTER_H
#define VRS_FILTER_H

#include <vrs/monoattribute.h>

namespace VRS {
    
class Engine;
class FilterTag;

class VRS_CORE_API Filter : public MonoAttribute {
    
public:
    enum TestOperation {
        BIT_AND, 
        BIT_OR, 
        BIT_XOR, 
        BIT_NOT_AND, 
        BIT_NOT_OR, 
        BIT_NOT_XOR,
        BIT_EQUAL,
        BIT_NOT_EQUAL
    };
    VRS_SERIALIZABLE_CLASS_ENUM(TestOperation);

    Filter(FilterTag* referenceTag = NULL, TestOperation testOperation = Filter::BIT_EQUAL);
    void setTest(TestOperation testOperation);
    TestOperation getTest() const;
    void setReferenceTag(FilterTag* tag);
    FilterTag* getReferenceTag() const;
    bool isOK(Engine* engine) const;
    static bool filterOK(Engine* engine);
    VRS_TYPEINFO(Filter, MonoAttribute);
    VRS_SERIALIZABLE(Filter);

private:
    TestOperation mode_;
    SO<FilterTag> ref_;
};

} // namespace VRS

#endif // VRS_FILTER_H

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