63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
/*
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* Copyright (C) 2008-2016 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_TYPE_MAP_HPP
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#define EVORAL_TYPE_MAP_HPP
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#include <stdint.h>
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#include <string>
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#include "evoral/visibility.h"
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#include "evoral/types.hpp"
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namespace Evoral {
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class Parameter;
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class ParameterDescriptor;
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/** The applications passes one of these which provide the implementation
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* with required information about event types in an opaque, type neutral way
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*/
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class /*LIBEVORAL_API*/ TypeMap {
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public:
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virtual ~TypeMap() {}
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/** Return true iff the type is a MIDI event.
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* The contents of the event will be used for specific ID
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*/
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virtual bool type_is_midi(uint32_t type) const = 0;
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/** Return the MIDI type (ie status byte with channel 0) for a
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* parameter, or 0 if parameter can not be expressed as a MIDI event
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*/
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virtual uint8_t parameter_midi_type(const Parameter& param) const = 0;
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/** The parameter type for the given MIDI event. */
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virtual ParameterType midi_parameter_type(const uint8_t* buf, uint32_t len) const = 0;
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/** Return the description of a parameter. */
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virtual ParameterDescriptor descriptor(const Parameter& param) const = 0;
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virtual std::string to_symbol(const Parameter& param) const = 0;
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};
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} // namespace Evoral
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#endif // EVORAL_TYPE_MAP_HPP
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