Function setLabelLineState

src/label/labelGuideHelper.ts:531–552

(
    labelLine: Polyline,
    ignore: boolean,
    stateName: string,
    stateModel: Model
)

type LabelLineModel = Model<LabelLineOption>;

function setLabelLineState(
    labelLine: Polyline,
    ignore: boolean,
    stateName: string,
    stateModel: Model
) {
    const isNormal = stateName === 'normal';
    const stateObj = isNormal ? labelLine : labelLine.ensureState(stateName);
    // Make sure display.
    stateObj.ignore = ignore;
    // Set smooth
    let smooth = stateModel.get('smooth');
    smooth = smooth === true ? 0.3 : Math.max(+smooth, 0) || 0;

    stateObj.shape = stateObj.shape || {};

    // always set the `smooth` property
    (stateObj.shape as Polyline['shape']).smooth = smooth;

    const styleObj = stateModel.getModel('lineStyle').getLineStyle();
    isNormal ? labelLine.useStyle(styleObj) : stateObj.style = styleObj;
}

function buildLabelLinePath(path: CanvasRenderingContext2D, shape: Polyline['shape']) {
    const smooth = shape.smooth as number;