Function toMoveInsideBar

src/traces/bar/plot.js:759–857

(x0, x1, y0, y1, textBB, opts)

}

function toMoveInsideBar(x0, x1, y0, y1, textBB, opts) {
    var isHorizontal = !!opts.isHorizontal;
    var constrained = !!opts.constrained;
    var angle = opts.angle || 0;
    var anchor = opts.anchor;
    var isEnd = anchor === 'end';
    var isStart = anchor === 'start';
    var leftToRight = opts.leftToRight || 0; // left: -1, center: 0, right: 1
    var toRight = (leftToRight + 1) / 2;
    var toLeft = 1 - toRight;
    var hasB = opts.hasB;
    var r = opts.r;
    var overhead = opts.overhead;

    var textWidth = textBB.width;
    var textHeight = textBB.height;

    var lx = Math.abs(x1 - x0);
    var ly = Math.abs(y1 - y0);

    // compute remaining space
    var textpad = lx > 2 * TEXTPAD && ly > 2 * TEXTPAD ? TEXTPAD : 0;

    lx -= 2 * textpad;
    ly -= 2 * textpad;

    var rotate = getRotateFromAngle(angle);
    if (
        angle === 'auto' &&
        !(textWidth <= lx && textHeight <= ly) &&
        (textWidth > lx || textHeight > ly) &&
        (!(textWidth > ly || textHeight > lx) || textWidth < textHeight !== lx < ly)
    ) {
        rotate += 90;
    }

    var t = getRotatedTextSize(textBB, rotate);

    var scale, padForRounding;
    // Scale text for rounded bars
    if (r && r - overhead > TEXTPAD) {
        var scaleAndPad = scaleTextForRoundedBar(x0, x1, y0, y1, t, r, overhead, isHorizontal, hasB);
        scale = scaleAndPad.scale;
        padForRounding = scaleAndPad.pad;
        // Scale text for non-rounded bars
    } else {
        scale = 1;
        if (constrained) {
            scale = Math.min(1, lx / t.x, ly / t.y);
        }
        padForRounding = 0;
    }

    // compute text and target positions
    var textX = textBB.left * toLeft + textBB.right * toRight;
    var textY = (textBB.top + textBB.bottom) / 2;
    var targetX = (x0 + TEXTPAD) * toLeft + (x1 - TEXTPAD) * toRight;
    var targetY = (y0 + y1) / 2;