Class LegendView

src/component/legend/LegendView.ts:61–597

const Group = graphic.Group;

class LegendView extends ComponentView {
    static type = 'legend.plain';
    type = LegendView.type;

    newlineDisabled = false;

    private _contentGroup: graphic.Group;

    private _backgroundEl: graphic.Rect;

    private _selectorGroup: graphic.Group;

    /**
     * If first rendering, `contentGroup.position` is [0, 0], which
     * does not make sense and may cause unexpected animation if adopted.
     */
    private _isFirstRender: boolean;

    init() {

        this.group.add(this._contentGroup = new Group());
        this.group.add(this._selectorGroup = new Group());

        this._isFirstRender = true;
    }

    /**
     * @protected
     */
    getContentGroup() {
        return this._contentGroup;
    }

    /**
     * @protected
     */
    getSelectorGroup() {
        return this._selectorGroup;
    }

    /**
     * @override
     */
    render(
        legendModel: LegendModel,
        ecModel: GlobalModel,
        api: ExtensionAPI
    ) {
        const isFirstRender = this._isFirstRender;
        this._isFirstRender = false;

        this.resetInner();

        if (!legendModel.get('show', true)) {
            return;
        }

        let itemAlign = legendModel.get('align');