Function getTextShiftX

src/components/fx/hover.js:2032–2048

* Calculate the shift in x for text and text2 elements

(hoverLabel)

 * Calculate the shift in x for text and text2 elements
 */
function getTextShiftX(hoverLabel) {
    var alignShift = { start: 1, end: -1, middle: 0 }[hoverLabel.anchor];
    var textShiftX = alignShift * (HOVERARROWSIZE + HOVERTEXTPAD);
    var text2ShiftX = textShiftX + alignShift * (hoverLabel.txwidth + HOVERTEXTPAD);

    var isMiddle = hoverLabel.anchor === 'middle';
    if (isMiddle) {
        textShiftX -= hoverLabel.tx2width / 2;
        text2ShiftX += hoverLabel.txwidth / 2 + HOVERTEXTPAD;
    }

    return {
        alignShift: alignShift,
        textShiftX: textShiftX,
        text2ShiftX: text2ShiftX
    };
}

function alignHoverText(hoverLabels, rotateLabels, scaleX, scaleY) {
    var pX = function (x) {