mirror of
https://github.com/firewalkwithm3/Sensor-Watch.git
synced 2024-11-23 03:30:30 +08:00
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2020 Joey Castillo
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "watch_led.h"
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#include <emscripten.h>
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void watch_enable_leds(void) {}
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void watch_disable_leds(void) {}
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void watch_set_led_color(uint8_t red, uint8_t green) {
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EM_ASM({
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// the watch svg contains an feColorMatrix filter with id ledcolor
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// and a green svg gradient that mimics the led being on
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// https://developer.mozilla.org/en-US/docs/Web/SVG/Element/feColorMatrix
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// this changes the color of the gradient to match the red+green combination
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let filter = document.getElementById("ledcolor");
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let color_matrix = filter.children[0].values.baseVal;
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color_matrix[1].value = $0 / 255; // red value
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color_matrix[6].value = $1 / 255; // green value
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document.getElementById('light').style.opacity = Math.min(255, $0 + $1) / 255;
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}, red, green);
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}
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void watch_set_led_red(void) {
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watch_set_led_color(255, 0);
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}
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void watch_set_led_green(void) {
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watch_set_led_color(0, 255);
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}
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void watch_set_led_yellow(void) {
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watch_set_led_color(255, 255);
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}
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void watch_set_led_off(void) {
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watch_set_led_color(0, 0);
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}
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