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/*===========================================================================*\
*                                                                            *
*                              OpenFlipper                                   *
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*      Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen       *
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*                           www.openflipper.org                              *
*                                                                            *
*--------------------------------------------------------------------------- *
*  This file is part of OpenFlipper.                                         *
*                                                                            *
*  OpenFlipper 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 3 of            *
*  the License, or (at your option) any later version with the               *
*  following exceptions:                                                     *
*                                                                            *
*  If other files instantiate templates or use macros                        *
*  or inline functions from this file, or you compile this file and          *
*  link it with other files to produce an executable, this file does         *
*  not by itself cause the resulting executable to be covered by the         *
*  GNU Lesser General Public License. This exception does not however        *
*  invalidate any other reasons why the executable file might be             *
*  covered by the GNU Lesser General Public License.                         *
*                                                                            *
*  OpenFlipper 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 LesserGeneral Public           *
*  License along with OpenFlipper. If not,                                   *
*  see <http://www.gnu.org/licenses/>.                                       *
*                                                                            *
\*===========================================================================*/

/*===========================================================================*\
*                                                                            *
*   $Revision$                                                       *
*   $LastChangedBy$                                                *
*   $Date$                     *
*                                                                            *
\*===========================================================================*/
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#ifndef VSI_INPUT_HH
#define VSI_INPUT_HH

//== INCLUDES =================================================================
#include <QString>
#include <QVariant>

#include "inout.hh"

//== NAMESPACES ===============================================================
namespace VSI {

//== CLASS DEFINITION =========================================================

/** Class representing an input of an element
  */
class Input : public InOut {

  public:

    /// Input states
    enum State {
      NoExternalInput = 0x1,
      NoUserInput = 0x2,
      NoRuntimeUserInput = 0x4,
      Optional = 0x8
    };

    /// Constructor
    Input (Element *_f);

    /// Current state
    unsigned int state ();

    /// Sets the state
    void setState (unsigned int _state) { state_ = _state; };

    friend class Context;

  private:

    unsigned int state_;

};

//=============================================================================
}
//=============================================================================

#endif