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/* SPDX-License-Identifier: MIT */
/*
* MIT License
*
* Copyright © 2021-2022 Joey Castillo <joeycastillo@utexas.edu> <jose.castillo@gmail.com>
* Copyright © 2022 Alexsander Akers <me@a2.io>
* Copyright © 2023 Alex Utter <ooterness@gmail.com>
* Copyright © 2024 Matheus Afonso Martins Moreira <matheus.a.m.moreira@gmail.com> (https://www.matheusmoreira.com/)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef PULSOMETER_FACE_H_
#define PULSOMETER_FACE_H_
/*
* PULSOMETER face
*
* The pulsometer implements a classic mechanical watch complication.
* A mechanical pulsometer involves a chronograph with a scale that
* allows the user to compute the number of heart beats per minute
* in less time. The scale is calibrated, or graduated, for a fixed
* number of heart beats, most often 30. The user starts the chronograph
* and simultaneously begins counting the heart beats. The movement of
* the chronograph's seconds hand over time automatically performs the
* computations required. When the calibrated number of heart beats
* is reached, the chronograph is stopped and the seconds hand shows
* the heart rate.
*
* The Sensor Watch pulsometer improves this design with user calibration:
* it can be graduated to any value between 1 and 39 pulsations per minute.
* The default is still 30, mirroring the classic pulsometer calibration.
* This feature allows the user to reconfigure the pulsometer to count
* many other types of periodic minutely events, making it more versatile.
* For example, it can be set to 5 respirations per minute to turn it into
* an asthmometer, a nearly identical mechanical watch complication
* that doctors might use to quickly measure respiratory rate.
*
* To use the pulsometer, hold the ALARM button and count the pulses.
* When the calibrated number of pulses is reached, release the button.
* The display will show the number of pulses per minute.
*
* In order to measure heart rate, feel for a pulse using the hand with
* the watch while holding the button down with the other.
* The pulse can be easily felt on the carotid artery of the neck.
*
* In order to measure breathing rate, simply hold the ALARM button
* and count the number of breaths.
*
* To calibrate the pulsometer, press LIGHT
* to cycle to the next integer calibration.
* Long press LIGHT to cycle it by 10.
*/
#include "movement.h"
void pulsometer_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
void pulsometer_face_activate(movement_settings_t *settings, void *context);
bool pulsometer_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
void pulsometer_face_resign(movement_settings_t *settings, void *context);
#define pulsometer_face ((const watch_face_t){ \
pulsometer_face_setup, \
pulsometer_face_activate, \
pulsometer_face_loop, \
pulsometer_face_resign, \
NULL, \
})
#endif // PULSOMETER_FACE_H_
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