@jbrowse/plugin-wiggle/esm/MultiLinearWiggleDisplay/components/util.js

JBrowse 2 wiggle adapters, tracks, etc.

import { getConf } from '@jbrowse/core/configuration';
import { getContainingTrack, getContainingView, measureText, } from '@jbrowse/core/util';
export function moveUp(arr, sel, by = 1) {
    const idxs = sel
        .map(l => arr.findIndex(v => v.name === l))
        .sort((a, b) => a - b);
    let lastIdx = 0;
    for (const old of idxs) {
        const idx = Math.max(lastIdx, old - by);
        if (idx >= lastIdx) {
            arr.splice(idx, 0, arr.splice(old, 1)[0]);
        }
        lastIdx = lastIdx + 1;
    }
    return arr;
}
export function moveDown(arr, sel, by = 1) {
    const idxs = sel
        .map(l => arr.findIndex(v => v.name === l))
        .sort((a, b) => b - a);
    let lastIdx = arr.length - 1;
    for (const old of idxs) {
        const idx = Math.min(lastIdx, old + by);
        if (idx <= lastIdx) {
            arr.splice(idx, 0, arr.splice(old, 1)[0]);
        }
        lastIdx = lastIdx - 1;
    }
    return arr;
}
const trackLabelFontSize = 12.8;
export function getOffset(model) {
    const { prefersOffset } = model;
    const { trackLabels } = getContainingView(model);
    const track = getContainingTrack(model);
    const trackName = getConf(track, 'name');
    return trackLabels === 'overlapping' && !prefersOffset
        ? measureText(trackName, trackLabelFontSize) + 100
        : 10;
}