2019-02-08 18:16:42 +00:00
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<!doctype html>
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<html>
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<head>
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<title>display</title>
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<style>
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body{
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background: #000;
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padding: 0;
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margin: 0;
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max-width: 100%;
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max-height: 100vh;
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}
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body.meter {
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background: rgb(117, 117, 117);
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}
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2023-02-25 17:33:18 +00:00
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body.meter #img,
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body.meter #can {
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display : none;
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}
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2019-02-08 18:16:42 +00:00
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#img {
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position: absolute;
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/*background-image: url(".../img/background.jpg");*/
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background-repeat:no-repeat;
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background-size: contain;
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background-position: center;
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top: 0;
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left: 0;
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right: 0;
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bottom: 0;
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}
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#can{
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margin: 0;
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background: #fff;
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display: none;
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position: fixed;
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2019-08-25 19:26:43 +00:00
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left: 50%;
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2019-08-25 19:54:50 +00:00
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top: 50%;
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transform: translate(-50%,-50%);
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2019-02-08 18:16:42 +00:00
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}
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#can.show{
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display: block;
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}
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</style>
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</head>
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<body>
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<div id="img">
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</div>
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<canvas id="can">
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</canvas>
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<script>
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'use strict';
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2023-02-25 17:33:18 +00:00
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const { ipcRenderer } = require('electron')
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const remote = require('@electron/remote')
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2020-02-21 07:28:26 +00:00
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let imgTmp;
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2019-02-08 18:16:42 +00:00
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async function setImage (src) {
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return new Promise(async (resolve, reject) => {
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2020-02-21 07:28:26 +00:00
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imgTmp = new Image()
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2019-02-08 18:16:42 +00:00
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let img = document.getElementById('img')
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let body = document.querySelector('body')
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2023-02-25 17:33:18 +00:00
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body.className = ''
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2020-02-21 07:28:26 +00:00
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imgTmp.onload = function () {
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img.style.backgroundImage = `url('${src}')`;
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return resolve(src);
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};
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imgTmp.src = src;
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2019-06-25 16:13:15 +00:00
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});
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2019-02-08 18:16:42 +00:00
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}
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2019-06-18 19:47:17 +00:00
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async function onMeter () {
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2019-06-25 16:13:15 +00:00
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console.log('meter')
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2019-06-18 19:47:17 +00:00
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const body = document.querySelector('body')
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2023-02-25 17:33:18 +00:00
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body.className = ''
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body.classList.add('meter')
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2019-02-08 18:16:42 +00:00
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}
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2019-06-25 16:13:15 +00:00
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async function onFocus () {
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console.log('focus')
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const can = document.getElementById('can')
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const dpr = window.devicePixelRatio || 1
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2023-02-25 17:33:18 +00:00
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const body = document.querySelector('body')
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2019-06-25 16:13:15 +00:00
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let ctx;
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2023-02-25 17:33:18 +00:00
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body.className = ''
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2019-06-25 16:13:15 +00:00
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if (!can.classList.contains('show')) {
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can.classList.add('show')
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}
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can.width = window.innerWidth * dpr
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can.height = window.innerHeight * dpr
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can.style.width = `${window.innerWidth}px`
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can.style.height = `${window.innerHeight}px`
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ctx = can.getContext('2d')
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ctx.scale(dpr, dpr)
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try{
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await drawFocus(can, ctx)
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} catch (err) {
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alert(JSON.stringify(err))
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}
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}
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async function drawFocus (can, ctx) {
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const count = 20
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const half = Math.round(count / 2)
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const dpr = window.devicePixelRatio || 1
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const w = can.width / dpr
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const h = can.height / dpr
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2019-06-26 20:07:00 +00:00
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const longest = w >= h ? w * 1.5 : h * 1.5
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const opp = Math.tan(360 / (count * 32)) * longest / 10
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//console.log(`l: ${longest}`)
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//console.log(`${360 / (count * 8)}deg`)
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//console.log(`o: ${opp}`)
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2019-06-25 16:13:15 +00:00
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for (let i = 0; i < count; i++) {
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ctx.beginPath()
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2019-06-25 16:13:15 +00:00
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ctx.moveTo(w / 2, h / 2)
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2019-06-26 20:07:00 +00:00
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ctx.lineTo((w / 2) + opp, longest)
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ctx.lineTo((w / 2) - opp, longest)
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2019-06-25 16:13:15 +00:00
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ctx.fill()
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ctx.translate(w / 2, h / 2);
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ctx.rotate((360 / count) * Math.PI / 180)
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ctx.translate(- w / 2, -h / 2)
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}
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}
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2019-08-25 19:26:43 +00:00
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async function onField (evt, arg) {
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console.log('field guide')
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2019-02-08 18:16:42 +00:00
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const can = document.getElementById('can')
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2019-06-25 16:13:15 +00:00
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const dpr = window.devicePixelRatio || 1
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2019-08-25 19:54:50 +00:00
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const screen = window.outerWidth / window.outerHeight
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2023-02-25 17:33:18 +00:00
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const body = document.querySelector('body')
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2019-06-25 16:13:15 +00:00
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let ctx;
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2023-02-25 17:33:18 +00:00
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body.className = ''
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2019-02-08 18:16:42 +00:00
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if (!can.classList.contains('show')) {
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can.classList.add('show')
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}
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2019-08-25 19:26:43 +00:00
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if (arg.ratio) {
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2019-08-25 19:54:50 +00:00
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if (arg.ratio < screen) {
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can.width = (window.innerHeight * arg.ratio) * dpr
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can.height = window.innerHeight * dpr
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} else {
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can.width =window.innerWidth * dpr
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can.height = (window.innerWidth / arg.ratio) * dpr
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}
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2019-08-25 19:26:43 +00:00
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} else {
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can.width = window.innerWidth * dpr
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2019-08-25 19:54:50 +00:00
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can.height = window.innerHeight * dpr
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2019-08-25 19:26:43 +00:00
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}
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2019-08-25 19:54:50 +00:00
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2019-06-25 16:13:15 +00:00
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2019-08-25 19:26:43 +00:00
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if (arg.ratio) {
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2019-08-25 19:54:50 +00:00
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if (arg.ratio < screen) {
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can.style.width = `${window.innerHeight * arg.ratio}px`
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can.style.height = `${window.innerHeight}px`
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} else {
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2023-02-25 07:08:05 +00:00
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can.style.width = `${window.innerWidth}px`
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2019-08-25 19:54:50 +00:00
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can.style.height = `${window.innerWidth / arg.ratio}px`
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}
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2019-08-25 19:26:43 +00:00
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} else {
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can.style.width = `${window.innerWidth}px`
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2019-08-25 19:54:50 +00:00
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can.style.height = `${window.innerHeight}px`
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2019-08-25 19:26:43 +00:00
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}
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2019-06-25 16:13:15 +00:00
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ctx = can.getContext('2d')
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ctx.scale(dpr, dpr)
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2019-02-08 18:16:42 +00:00
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try{
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2019-06-18 19:47:17 +00:00
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await drawField(can, ctx)
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2019-02-08 18:16:42 +00:00
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} catch (err) {
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alert(JSON.stringify(err))
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}
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}
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2019-06-18 19:47:17 +00:00
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// draw a field guide
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async function drawField (can, ctx) {
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2019-02-08 18:16:42 +00:00
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const count = 20
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const half = Math.round(count / 2)
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2019-06-25 16:13:15 +00:00
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const dpr = window.devicePixelRatio || 1
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const w = can.width / dpr
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const h = can.height / dpr
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2019-02-08 18:16:42 +00:00
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const wsec = w / count
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2019-06-25 16:13:15 +00:00
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const hsec = h / count
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const spacer = 12
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2019-08-25 19:54:50 +00:00
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const fontSize = 18
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ctx.lineWidth = 2
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2019-06-18 19:47:17 +00:00
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2019-02-08 18:16:42 +00:00
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ctx.moveTo(w / 2, 0)
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ctx.lineTo(w / 2, h)
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ctx.stroke()
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ctx.moveTo(0, h / 2)
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ctx.lineTo(w, h / 2)
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ctx.stroke()
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2019-06-18 19:47:17 +00:00
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2019-02-08 18:16:42 +00:00
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for (let i = 0; i < count; i++) {
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ctx.moveTo(wsec * i, hsec * i)
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ctx.lineTo(wsec * i, h - (hsec * i))
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ctx.stroke()
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ctx.moveTo(wsec * i, hsec * i)
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ctx.lineTo(w - (wsec * i), hsec * i)
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ctx.stroke()
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}
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2019-08-25 19:54:50 +00:00
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ctx.lineWidth = 1
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2019-06-25 16:13:15 +00:00
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ctx.font = `${fontSize}px Arial`
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2019-02-08 18:16:42 +00:00
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for (let i = 0; i < half; i++) {
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2019-08-25 19:54:50 +00:00
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//left count
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2019-06-25 16:13:15 +00:00
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ctx.fillText(`${(half - i)}`, (wsec * i) + spacer, (h / 2) - spacer)
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2019-08-25 19:54:50 +00:00
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//right count
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ctx.fillText(`${(half - i)}`, (w - (wsec * i)) - (spacer * 2), (h / 2) + (spacer * 2))
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//up count
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2019-06-25 16:13:15 +00:00
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ctx.fillText(`${(half - i)}`, (w / 2) + spacer, (hsec * i) + spacer + (fontSize / 2) )
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2019-08-25 19:54:50 +00:00
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//down count
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ctx.fillText(`${(half - i)}`, (w / 2) - (spacer * 2), (h - (hsec * i)) - spacer)
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2019-02-08 18:16:42 +00:00
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}
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}
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async function onDigital (event, arg) {
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if (arg.src) {
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try {
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await setImage(arg.src)
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2019-02-08 18:16:42 +00:00
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} catch (err) {
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console.error(err)
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}
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2020-02-21 07:28:26 +00:00
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ipcRenderer.send('display_load', { src : arg.src });
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2019-02-08 18:16:42 +00:00
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}
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return event.returnValue = true
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}
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2023-02-25 17:33:18 +00:00
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2019-02-08 18:16:42 +00:00
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async function onEscape (evt) {
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let isEscape = false
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let win
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2023-02-25 17:33:18 +00:00
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2019-02-08 18:16:42 +00:00
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evt = evt || window.event
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if ('key' in evt) {
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isEscape = (evt.key == 'Escape' || evt.key == 'Esc')
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} else {
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isEscape = (evt.keyCode == 27)
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}
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2023-02-25 17:33:18 +00:00
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2019-02-08 18:16:42 +00:00
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if (isEscape) {
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win = remote.getCurrentWindow()
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win.close()
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}
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}
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ipcRenderer.on('display', onDigital)
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2019-06-18 19:47:17 +00:00
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ipcRenderer.on('field', onField)
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ipcRenderer.on('meter', onMeter)
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2019-06-25 16:13:15 +00:00
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ipcRenderer.on('focus', onFocus)
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2019-02-08 18:16:42 +00:00
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document.onkeydown = onEscape
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</script>
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</body>
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</html>
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