@stringsync/vexml
Version:
MusicXML to Vexflow
125 lines (124 loc) • 5.31 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
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desc = { enumerable: true, get: function() { return m[k]; } };
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Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
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return c > 3 && r && Object.defineProperty(target, key, r), r;
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var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
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if (mod && mod.__esModule) return mod;
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if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.LazyCursorStateHintProvider = void 0;
const util = __importStar(require("../util"));
class LazyCursorStateHintProvider {
currentFrame;
previousFrame;
hintDescriber;
constructor(currentFrame, previousFrame, hintDescriber) {
this.currentFrame = currentFrame;
this.previousFrame = previousFrame;
this.hintDescriber = hintDescriber;
}
get() {
if (!this.previousFrame) {
return [];
}
if (this.currentFrame === this.previousFrame) {
return [];
}
const previousElements = new Set(this.previousFrame.getActiveElements());
const currentElements = new Set(this.currentFrame.getActiveElements());
const previousNotes = this.previousFrame.getActiveElements().filter((e) => e.name === 'note');
const currentNotes = this.currentFrame.getActiveElements().filter((e) => e.name === 'note');
return [
...this.getStopHints(currentElements, previousElements),
...this.getStartHints(currentElements, previousElements),
...this.getRetriggerHints(currentNotes, previousNotes),
...this.getSustainHints(currentNotes, previousNotes),
];
}
toHumanReadable() {
return this.get().map((hint) => this.hintDescriber.describe(hint));
}
getStartHints(currentElements, previousElements) {
const hints = new Array();
for (const element of currentElements) {
if (!previousElements.has(element)) {
hints.push({ type: 'start', element });
}
}
return hints;
}
getStopHints(currentElements, previousElements) {
const hints = new Array();
for (const element of previousElements) {
if (!currentElements.has(element)) {
hints.push({ type: 'stop', element });
}
}
return hints;
}
getRetriggerHints(currentNotes, previousNotes) {
const hints = new Array();
for (const currentNote of currentNotes) {
const previousNote = previousNotes.find((previousNote) => previousNote.containsEquivalentPitch(currentNote));
if (previousNote && previousNote !== currentNote && !previousNote.sharesACurveWith(currentNote)) {
hints.push({
type: 'retrigger',
untriggerElement: previousNote,
retriggerElement: currentNote,
});
}
}
return hints;
}
getSustainHints(currentNotes, previousNotes) {
const hints = new Array();
for (const currentNote of currentNotes) {
const previousNote = previousNotes.find((previousNote) => previousNote.containsEquivalentPitch(currentNote));
if (previousNote && previousNote !== currentNote && previousNote.sharesACurveWith(currentNote)) {
hints.push({
type: 'sustain',
previousElement: previousNote,
currentElement: currentNote,
});
}
}
return hints;
}
}
exports.LazyCursorStateHintProvider = LazyCursorStateHintProvider;
__decorate([
util.memoize()
], LazyCursorStateHintProvider.prototype, "get", null);