midi_function.h

// SPDX-FileCopyrightText: © 2020, 2023-2025 Alexandros Theodotou <alex@zrythm.org>
// SPDX-License-Identifier: LicenseRef-ZrythmLicense
 
#pragma once
 
#include <span>
 
#include "dsp/curve.h"
#include "utils/midi.h"
#include "utils/utf8_string.h"
 
namespace zrythm::structure::arrangement
{
class MidiNote;
 
class MidiFunction
{
public:
  enum class Type
  {
    Crescendo,
    Flam,
    FlipHorizontal,
    FlipVertical,
    Legato,
    Portato,
    Staccato,
    Strum,
  };
 
  class Options
  {
  public:
    midi_byte_t start_vel_ = 0;
    midi_byte_t end_vel_ = 0;
    midi_byte_t vel_ = 0;
 
    bool   ascending_ = true;
    double time_ = 0;
    double amount_ = 0;
 
    dsp::CurveOptions::Algorithm curve_algo_{};
    double                       curviness_{};
  };

  static utils::Utf8String type_to_string_id (Type type);

  static auto string_id_to_type (const char * id) -> Type;

  static void apply (std::span<MidiNote *> sel, Type type, Options opts);
};
}