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24 lines
877 B
JavaScript
24 lines
877 B
JavaScript
import { registerWidget, setWidget } from '@strudel/codemirror';
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function getCanvasWidget(id, options = {}) {
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const { width = 500, height = 60, pixelRatio = window.devicePixelRatio } = options;
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let canvas = document.getElementById(id) || document.createElement('canvas');
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canvas.width = width * pixelRatio;
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canvas.height = height * pixelRatio;
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canvas.style.width = width + 'px';
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canvas.style.height = height + 'px';
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setWidget(id, canvas);
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return canvas;
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}
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registerWidget('roll', (id, options = {}, pat) => {
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const ctx = getCanvasWidget(id, options).getContext('2d');
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return pat.pianoroll({ fold: 1, ...options, ctx, id });
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});
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registerWidget('twist', (id, options = {}, pat) => {
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options = { width: 200, height: 200, size: 36, ...options };
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const ctx = getCanvasWidget(id, options).getContext('2d');
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return pat.spiral({ ...options, ctx, id });
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});
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