109 lines
2.9 KiB
Vue
109 lines
2.9 KiB
Vue
<template>
|
|
<canvas class="mk-analog-clock" ref="canvas" width="256" height="256"></canvas>
|
|
</template>
|
|
|
|
<script lang="ts">
|
|
import Vue from 'vue';
|
|
import { themeColor } from '../../../config';
|
|
|
|
const Vec2 = function(this: any, x, y) {
|
|
this.x = x;
|
|
this.y = y;
|
|
};
|
|
|
|
export default Vue.extend({
|
|
data() {
|
|
return {
|
|
clock: null
|
|
};
|
|
},
|
|
mounted() {
|
|
this.tick();
|
|
this.clock = setInterval(this.tick, 1000);
|
|
},
|
|
beforeDestroy() {
|
|
clearInterval(this.clock);
|
|
},
|
|
methods: {
|
|
tick() {
|
|
const canv = this.$refs.canvas as any;
|
|
|
|
const now = new Date();
|
|
const s = now.getSeconds();
|
|
const m = now.getMinutes();
|
|
const h = now.getHours();
|
|
|
|
const ctx = canv.getContext('2d');
|
|
const canvW = canv.width;
|
|
const canvH = canv.height;
|
|
ctx.clearRect(0, 0, canvW, canvH);
|
|
|
|
{ // 背景
|
|
const center = Math.min((canvW / 2), (canvH / 2));
|
|
const lineStart = center * 0.90;
|
|
const shortLineEnd = center * 0.87;
|
|
const longLineEnd = center * 0.84;
|
|
for (let i = 0; i < 60; i++) {
|
|
const angle = Math.PI * i / 30;
|
|
const uv = new Vec2(Math.sin(angle), -Math.cos(angle));
|
|
ctx.beginPath();
|
|
ctx.lineWidth = 1;
|
|
ctx.moveTo((canvW / 2) + uv.x * lineStart, (canvH / 2) + uv.y * lineStart);
|
|
if (i % 5 == 0) {
|
|
ctx.strokeStyle = 'rgba(255, 255, 255, 0.2)';
|
|
ctx.lineTo((canvW / 2) + uv.x * longLineEnd, (canvH / 2) + uv.y * longLineEnd);
|
|
} else {
|
|
ctx.strokeStyle = 'rgba(255, 255, 255, 0.1)';
|
|
ctx.lineTo((canvW / 2) + uv.x * shortLineEnd, (canvH / 2) + uv.y * shortLineEnd);
|
|
}
|
|
ctx.stroke();
|
|
}
|
|
}
|
|
|
|
{ // 分
|
|
const angle = Math.PI * (m + s / 60) / 30;
|
|
const length = Math.min(canvW, canvH) / 2.6;
|
|
const uv = new Vec2(Math.sin(angle), -Math.cos(angle));
|
|
ctx.beginPath();
|
|
ctx.strokeStyle = '#ffffff';
|
|
ctx.lineWidth = 2;
|
|
ctx.moveTo(canvW / 2 - uv.x * length / 5, canvH / 2 - uv.y * length / 5);
|
|
ctx.lineTo(canvW / 2 + uv.x * length, canvH / 2 + uv.y * length);
|
|
ctx.stroke();
|
|
}
|
|
|
|
{ // 時
|
|
const angle = Math.PI * (h % 12 + m / 60) / 6;
|
|
const length = Math.min(canvW, canvH) / 4;
|
|
const uv = new Vec2(Math.sin(angle), -Math.cos(angle));
|
|
ctx.beginPath();
|
|
ctx.strokeStyle = themeColor;
|
|
ctx.lineWidth = 2;
|
|
ctx.moveTo(canvW / 2 - uv.x * length / 5, canvH / 2 - uv.y * length / 5);
|
|
ctx.lineTo(canvW / 2 + uv.x * length, canvH / 2 + uv.y * length);
|
|
ctx.stroke();
|
|
}
|
|
|
|
{ // 秒
|
|
const angle = Math.PI * s / 30;
|
|
const length = Math.min(canvW, canvH) / 2.6;
|
|
const uv = new Vec2(Math.sin(angle), -Math.cos(angle));
|
|
ctx.beginPath();
|
|
ctx.strokeStyle = 'rgba(255, 255, 255, 0.5)';
|
|
ctx.lineWidth = 1;
|
|
ctx.moveTo(canvW / 2 - uv.x * length / 5, canvH / 2 - uv.y * length / 5);
|
|
ctx.lineTo(canvW / 2 + uv.x * length, canvH / 2 + uv.y * length);
|
|
ctx.stroke();
|
|
}
|
|
}
|
|
}
|
|
});
|
|
</script>
|
|
|
|
<style lang="stylus" scoped>
|
|
.mk-analog-clock
|
|
display block
|
|
width 256px
|
|
height 256px
|
|
</style>
|