ParameterDescriptor.h

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/*
 * Copyright (C) 2014 David Robillard <d@drobilla.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef EVORAL_PARAMETER_DESCRIPTOR_HPP
#define EVORAL_PARAMETER_DESCRIPTOR_HPP
 
namespace Evoral {
 
struct ParameterDescriptor
{
        ParameterDescriptor()
                : normal(0.0)
                , lower(0.0)
                , upper(1.0)
                , toggled(false)
                , logarithmic(false)
                , rangesteps (0)
        {}
 
        virtual ~ParameterDescriptor () {}
        virtual float to_interface (float val, bool rotary = false) const {
                return (val - lower) / (upper - lower);
        }
 
        float normal;      
        float lower;       
        float upper;       
        bool  toggled;     
        bool  logarithmic; 
        unsigned int rangesteps; 
};
 
} // namespace Evoral
 
#endif // EVORAL_PARAMETER_DESCRIPTOR_HPP