sygsp-button.hpp

#pragma once
/*
Copyright 2023 Travis J. West, https://traviswest.ca, Input Devices and Music
Interaction Laboratory (IDMIL), Centre for Interdisciplinary Research in Music
Media and Technology (CIRMMT), McGill University, Montréal, Canada, and Univ.
Lille, Inria, CNRS, Centrale Lille, UMR 9189 CRIStAL, F-59000 Lille, France
 
SPDX-License-Identifier: MIT
*/
 
#include "sygah-consteval.hpp"
#include "sygah-endpoints.hpp"
 
namespace sygaldry { namespace sygsp {
 
 
enum class ButtonActive : char {Low = 0, High = 1};
 
 
struct ButtonGestureModel
{
    struct inputs_t {
        toggle<"button state", "1 indicates button active, 0 inactive"> button_state;
    } inputs;
 
    struct outputs_t {
        // we assume this is persistent across ticks
        toggle<"debounced state", "updates only when the button state has changed since the last tick"> debounced_state;
 
        bng<"any edge", "bangs on any change to debounced state"> any_edge;
        bng<"rising edge", "bangs when the button is activated"> rising_edge;
        bng<"falling edge", "bangs when the button is deactivated"> falling_edge;
    } outputs;
 
    void operator()();
};
 
} }