Robin Gareus
a5f36bbbbf
This fixes thinning of MIDI data (range 0..127) and other parameters with range other than 0..1.
52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
/*
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* Copyright (C) 2014 David Robillard <d@drobilla.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef EVORAL_PARAMETER_DESCRIPTOR_HPP
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#define EVORAL_PARAMETER_DESCRIPTOR_HPP
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namespace Evoral {
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/** Description of the value range of a parameter or control. */
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struct ParameterDescriptor
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{
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ParameterDescriptor()
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: normal(0.0)
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, lower(0.0)
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, upper(1.0)
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, toggled(false)
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, logarithmic(false)
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, rangesteps (0)
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{}
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virtual ~ParameterDescriptor () {}
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virtual float to_interface (float val, bool rotary = false) const {
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return (val - lower) / (upper - lower);
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}
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float normal; ///< Default value
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float lower; ///< Minimum value (in Hz, for frequencies)
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float upper; ///< Maximum value (in Hz, for frequencies)
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bool toggled; ///< True iff parameter is boolean
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bool logarithmic; ///< True for log-scale parameters
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unsigned int rangesteps; ///< number of steps, [min,max] (inclusive). <= 1 means continuous. == 2 only min, max. For integer controls this is usually (1 + max - min)
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};
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} // namespace Evoral
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#endif // EVORAL_PARAMETER_DESCRIPTOR_HPP
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