move Framer + Drawer to core

... from vite-vanilla-repl-cm6
This commit is contained in:
Felix Roos 2023-05-05 16:06:11 +02:00
parent 9039600f6d
commit 9807c4b7a1
4 changed files with 96 additions and 232 deletions

View File

@ -29,3 +29,98 @@ Pattern.prototype.onPaint = function (onPaint) {
this.context = { onPaint };
return this;
};
// const round = (x) => Math.round(x * 1000) / 1000;
// encapsulates starting and stopping animation frames
export class Framer {
constructor(onFrame, onError) {
this.onFrame = onFrame;
this.onError = onError;
}
start() {
const self = this;
let frame = requestAnimationFrame(function updateHighlights(time) {
try {
self.onFrame(time);
} catch (err) {
self.onError(err);
}
frame = requestAnimationFrame(updateHighlights);
});
self.cancel = () => {
cancelAnimationFrame(frame);
};
}
stop() {
if (this.cancel) {
this.cancel();
}
}
}
// syncs animation frames to a cyclist scheduler
// see vite-vanilla-repl-cm6 for an example
export class Drawer {
constructor(onDraw, drawTime) {
let [lookbehind, lookahead] = drawTime; // e.g. [-2, 2]
lookbehind = Math.abs(lookbehind);
this.visibleHaps = [];
this.lastFrame = null;
this.drawTime = drawTime;
this.framer = new Framer(
() => {
if (!this.scheduler) {
console.warn('Drawer: no scheduler');
return;
}
// calculate current frame time (think right side of screen for pianoroll)
const phase = this.scheduler.now() + lookahead;
// first frame just captures the phase
if (this.lastFrame === null) {
this.lastFrame = phase;
return;
}
// query haps from last frame till now. take last 100ms max
const haps = this.scheduler.pattern.queryArc(Math.max(this.lastFrame, phase - 1 / 10), phase);
this.lastFrame = phase;
this.visibleHaps = (this.visibleHaps || [])
// filter out haps that are too far in the past (think left edge of screen for pianoroll)
.filter((h) => h.whole.end >= phase - lookbehind - lookahead)
// add new haps with onset (think right edge bars scrolling in)
.concat(haps.filter((h) => h.hasOnset()));
const time = phase - lookahead;
onDraw(this.visibleHaps, time, this);
},
(err) => {
console.warn('draw error', err);
},
);
}
check() {
if (!this.scheduler) {
throw new Error('no scheduler set..');
}
}
invalidate() {
this.check();
const t = this.scheduler.now();
let [_, lookahead] = this.drawTime;
// remove all future haps
this.visibleHaps = this.visibleHaps.filter((h) => h.whole.begin < t);
// query future haps
const futureHaps = this.scheduler.pattern.queryArc(Math.max(t, 0), t + lookahead + 0.1); // +0.1 = workaround for weird holes in query..
// append future haps
this.visibleHaps = this.visibleHaps.concat(futureHaps);
}
start(scheduler) {
this.scheduler = scheduler;
this.invalidate();
this.framer.start();
}
stop() {
if (this.framer) {
this.framer.stop();
}
}
}

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@ -1,91 +0,0 @@
const round = (x) => Math.round(x * 1000) / 1000;
export class Framer {
constructor(onFrame, onError) {
this.onFrame = onFrame;
this.onError = onError;
}
start() {
const self = this;
let frame = requestAnimationFrame(function updateHighlights(time) {
try {
self.onFrame(time);
} catch (err) {
self.onError(err);
}
frame = requestAnimationFrame(updateHighlights);
});
self.cancel = () => {
cancelAnimationFrame(frame);
};
}
stop() {
if (this.cancel) {
this.cancel();
}
}
}
export class Drawer {
constructor(onDraw, drawTime) {
let [lookbehind, lookahead] = drawTime; // e.g. [-2, 2]
lookbehind = Math.abs(lookbehind);
this.visibleHaps = [];
this.lastFrame = null;
this.drawTime = drawTime;
this.framer = new Framer(
() => {
if (!this.scheduler) {
console.warn('Drawer: no scheduler');
return;
}
// calculate current frame time (think right side of screen for pianoroll)
const phase = this.scheduler.now() + lookahead;
// first frame just captures the phase
if (this.lastFrame === null) {
this.lastFrame = phase;
return;
}
// query haps from last frame till now. take last 100ms max
const haps = this.scheduler.pattern.queryArc(Math.max(this.lastFrame, phase - 1 / 10), phase);
this.lastFrame = phase;
this.visibleHaps = (this.visibleHaps || [])
// filter out haps that are too far in the past (think left edge of screen for pianoroll)
.filter((h) => h.whole.end >= phase - lookbehind - lookahead)
// add new haps with onset (think right edge bars scrolling in)
.concat(haps.filter((h) => h.hasOnset()));
const time = phase - lookahead;
onDraw(this.visibleHaps, time, this);
},
(err) => {
console.warn('draw error', err);
},
);
}
check() {
if (!this.scheduler) {
throw new Error('no scheduler set..');
}
}
invalidate() {
this.check();
const t = this.scheduler.now();
let [_, lookahead] = this.drawTime;
// remove all future haps
this.visibleHaps = this.visibleHaps.filter((h) => h.whole.begin < t);
// query future haps
const futureHaps = this.scheduler.pattern.queryArc(Math.max(t, 0), t + lookahead + 0.1); // +0.1 = workaround for weird holes in query..
// append future haps
this.visibleHaps = this.visibleHaps.concat(futureHaps);
}
start(scheduler) {
this.scheduler = scheduler;
this.invalidate();
this.framer.start();
}
stop() {
if (this.framer) {
this.framer.stop();
}
}
}

View File

@ -2,9 +2,8 @@
import { StrudelMirror } from '@strudel/codemirror';
import { initStrudel } from './strudel';
import { Drawer } from './drawer';
import { funk42 } from './tunes';
import { pianoroll, getDrawOptions } from '@strudel.cycles/core';
import { pianoroll, getDrawOptions, Drawer } from '@strudel.cycles/core';
import './style.css';
const repl = initStrudel();

View File

@ -1,139 +0,0 @@
import { EditorView } from '@codemirror/view';
import { HighlightStyle, syntaxHighlighting } from '@codemirror/language';
import { tags as t } from '@lezer/highlight';
// Using https://github.com/one-dark/vscode-one-dark-theme/ as reference for the colors
const chalky = '#e5c07b',
coral = '#e06c75',
cyan = '#56b6c2',
invalid = '#ffffff',
ivory = '#abb2bf',
stone = '#7d8799', // Brightened compared to original to increase contrast
malibu = '#61afef',
sage = '#98c379',
whiskey = '#d19a66',
violet = '#c678dd',
darkBackground = '#21252b',
highlightBackground = '#2c313a',
background = '#282c34',
tooltipBackground = '#353a42',
selection = '#3E4451',
cursor = '#528bff';
/// The colors used in the theme, as CSS color strings.
export const color = {
chalky,
coral,
cyan,
invalid,
ivory,
stone,
malibu,
sage,
whiskey,
violet,
darkBackground,
highlightBackground,
background,
tooltipBackground,
selection,
cursor,
};
/// The editor theme styles for One Dark.
export const oneDarkTheme = EditorView.theme(
{
'&': {
color: ivory,
backgroundColor: background,
},
'.cm-content': {
caretColor: cursor,
},
'.cm-cursor, .cm-dropCursor': { borderLeftColor: cursor },
'&.cm-focused > .cm-scroller > .cm-selectionLayer .cm-selectionBackground, .cm-selectionBackground, .cm-content ::selection':
{ backgroundColor: selection },
'.cm-panels': { backgroundColor: darkBackground, color: ivory },
'.cm-panels.cm-panels-top': { borderBottom: '2px solid black' },
'.cm-panels.cm-panels-bottom': { borderTop: '2px solid black' },
'.cm-searchMatch': {
backgroundColor: '#72a1ff59',
outline: '1px solid #457dff',
},
'.cm-searchMatch.cm-searchMatch-selected': {
backgroundColor: '#6199ff2f',
},
'.cm-activeLine': { backgroundColor: '#6699ff0b' },
'.cm-selectionMatch': { backgroundColor: '#aafe661a' },
'&.cm-focused .cm-matchingBracket, &.cm-focused .cm-nonmatchingBracket': {
backgroundColor: '#bad0f847',
},
'.cm-gutters': {
backgroundColor: background,
color: stone,
border: 'none',
},
'.cm-activeLineGutter': {
backgroundColor: highlightBackground,
},
'.cm-foldPlaceholder': {
backgroundColor: 'transparent',
border: 'none',
color: '#ddd',
},
'.cm-tooltip': {
border: 'none',
backgroundColor: tooltipBackground,
},
'.cm-tooltip .cm-tooltip-arrow:before': {
borderTopColor: 'transparent',
borderBottomColor: 'transparent',
},
'.cm-tooltip .cm-tooltip-arrow:after': {
borderTopColor: tooltipBackground,
borderBottomColor: tooltipBackground,
},
'.cm-tooltip-autocomplete': {
'& > ul > li[aria-selected]': {
backgroundColor: highlightBackground,
color: ivory,
},
},
},
{ dark: true },
);
/// The highlighting style for code in the One Dark theme.
export const oneDarkHighlightStyle = HighlightStyle.define([
{ tag: t.keyword, color: violet },
{ tag: [t.name, t.deleted, t.character, t.propertyName, t.macroName], color: coral },
{ tag: [t.function(t.variableName), t.labelName], color: malibu },
{ tag: [t.color, t.constant(t.name), t.standard(t.name)], color: whiskey },
{ tag: [t.definition(t.name), t.separator], color: ivory },
{ tag: [t.typeName, t.className, t.number, t.changed, t.annotation, t.modifier, t.self, t.namespace], color: chalky },
{ tag: [t.operator, t.operatorKeyword, t.url, t.escape, t.regexp, t.link, t.special(t.string)], color: cyan },
{ tag: [t.meta, t.comment], color: stone },
{ tag: t.strong, fontWeight: 'bold' },
{ tag: t.emphasis, fontStyle: 'italic' },
{ tag: t.strikethrough, textDecoration: 'line-through' },
{ tag: t.link, color: stone, textDecoration: 'underline' },
{ tag: t.heading, fontWeight: 'bold', color: coral },
{ tag: [t.atom, t.bool, t.special(t.variableName)], color: whiskey },
{ tag: [t.processingInstruction, t.string, t.inserted], color: sage },
{ tag: t.invalid, color: invalid },
]);
/// Extension to enable the One Dark theme (both the editor theme and
/// the highlight style).
export const oneDark = [oneDarkTheme, syntaxHighlighting(oneDarkHighlightStyle)];