124 lines
5 KiB
TypeScript
124 lines
5 KiB
TypeScript
import * as tinycolor from 'tinycolor2';
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import Chart from 'chart.js';
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import { Hpml } from './evaluator';
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import { values, utils } from '@syuilo/aiscript';
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// https://stackoverflow.com/questions/38493564/chart-area-background-color-chartjs
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Chart.pluginService.register({
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beforeDraw: (chart, easing) => {
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if (chart.config.options.chartArea && chart.config.options.chartArea.backgroundColor) {
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const ctx = chart.chart.ctx;
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ctx.save();
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ctx.fillStyle = chart.config.options.chartArea.backgroundColor;
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ctx.fillRect(0, 0, chart.chart.width, chart.chart.height);
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ctx.restore();
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}
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}
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});
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export function initLib(hpml: Hpml) {
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return {
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'MkPages:updated': values.FN_NATIVE(([callback]) => {
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hpml.pageVarUpdatedCallback = callback;
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}),
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'MkPages:get_canvas': values.FN_NATIVE(([id]) => {
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utils.assertString(id);
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const canvas = hpml.canvases[id.value];
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const ctx = canvas.getContext('2d');
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return values.OBJ(new Map([
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['clear_rect', values.FN_NATIVE(([x, y, width, height]) => { ctx.clearRect(x.value, y.value, width.value, height.value); })],
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['fill_rect', values.FN_NATIVE(([x, y, width, height]) => { ctx.fillRect(x.value, y.value, width.value, height.value); })],
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['stroke_rect', values.FN_NATIVE(([x, y, width, height]) => { ctx.strokeRect(x.value, y.value, width.value, height.value); })],
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['fill_text', values.FN_NATIVE(([text, x, y, width]) => { ctx.fillText(text.value, x.value, y.value, width ? width.value : undefined); })],
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['stroke_text', values.FN_NATIVE(([text, x, y, width]) => { ctx.strokeText(text.value, x.value, y.value, width ? width.value : undefined); })],
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['set_line_width', values.FN_NATIVE(([width]) => { ctx.lineWidth = width.value; })],
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['set_font', values.FN_NATIVE(([font]) => { ctx.font = font.value; })],
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['set_fill_style', values.FN_NATIVE(([style]) => { ctx.fillStyle = style.value; })],
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['set_stroke_style', values.FN_NATIVE(([style]) => { ctx.strokeStyle = style.value; })],
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['begin_path', values.FN_NATIVE(() => { ctx.beginPath(); })],
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['close_path', values.FN_NATIVE(() => { ctx.closePath(); })],
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['move_to', values.FN_NATIVE(([x, y]) => { ctx.moveTo(x.value, y.value); })],
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['line_to', values.FN_NATIVE(([x, y]) => { ctx.lineTo(x.value, y.value); })],
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['arc', values.FN_NATIVE(([x, y, radius, startAngle, endAngle]) => { ctx.arc(x.value, y.value, radius.value, startAngle.value, endAngle.value); })],
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['rect', values.FN_NATIVE(([x, y, width, height]) => { ctx.rect(x.value, y.value, width.value, height.value); })],
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['fill', values.FN_NATIVE(() => { ctx.fill(); })],
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['stroke', values.FN_NATIVE(() => { ctx.stroke(); })],
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]));
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}),
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'MkPages:chart': values.FN_NATIVE(([id, opts]) => {
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utils.assertString(id);
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utils.assertObject(opts);
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const canvas = hpml.canvases[id.value];
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const color = getComputedStyle(document.documentElement).getPropertyValue('--accent');
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Chart.defaults.global.defaultFontColor = '#555';
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const chart = new Chart(canvas, {
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type: opts.value.get('type').value,
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data: {
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labels: opts.value.get('labels').value.map(x => x.value),
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datasets: opts.value.get('datasets').value.map(x => ({
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label: x.value.has('label') ? x.value.get('label').value : '',
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data: x.value.get('data').value.map(x => x.value),
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pointRadius: 0,
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lineTension: 0,
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borderWidth: 2,
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borderColor: x.value.has('color') ? x.value.get('color') : color,
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backgroundColor: tinycolor(x.value.has('color') ? x.value.get('color') : color).setAlpha(0.1).toRgbString(),
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}))
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},
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options: {
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responsive: false,
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devicePixelRatio: 1.5,
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title: {
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display: opts.value.has('title'),
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text: opts.value.has('title') ? opts.value.get('title').value : '',
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fontSize: 14,
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},
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layout: {
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padding: {
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left: 32,
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right: 32,
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top: opts.value.has('title') ? 16 : 32,
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bottom: 16
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}
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},
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legend: {
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display: opts.value.get('datasets').value.filter(x => x.value.has('label') && x.value.get('label').value).length === 0 ? false : true,
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position: 'bottom',
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labels: {
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boxWidth: 16,
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}
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},
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tooltips: {
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enabled: false,
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},
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chartArea: {
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backgroundColor: '#fff'
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},
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...(opts.value.get('type').value === 'radar' ? {
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scale: {
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ticks: {
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display: opts.value.has('show_tick_label') ? opts.value.get('show_tick_label').value : false,
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min: opts.value.has('min') ? opts.value.get('min').value : undefined,
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max: opts.value.has('max') ? opts.value.get('max').value : undefined,
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maxTicksLimit: 8,
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},
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pointLabels: {
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fontSize: 12
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}
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}
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} : {
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scales: {
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yAxes: [{
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ticks: {
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display: opts.value.has('show_tick_label') ? opts.value.get('show_tick_label').value : true,
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min: opts.value.has('min') ? opts.value.get('min').value : undefined,
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max: opts.value.has('max') ? opts.value.get('max').value : undefined,
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}
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}]
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}
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})
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}
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});
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})
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};
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}
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