Function style

src/chart/custom/CustomView.ts:804–840

* @deprecated The original intention of `api.style` is enable to set itemStyle * like other series. But it is not necessary and not easy to give a strict definition * of what it returns. And since echarts5 it needs to be make compat work. So * deprecates it since echarts5. *

(userProps?: ZRStyleProps, dataIndexInside?: number)

     * @param dataIndexInside by default `currDataIndexInside`.
     */
    function style(userProps?: ZRStyleProps, dataIndexInside?: number): ZRStyleProps {
        if (__DEV__) {
            warnDeprecated('api.style', 'Please write literal style directly instead.');
        }

        dataIndexInside == null && (dataIndexInside = currDataIndexInside);

        const style = data.getItemVisual(dataIndexInside, 'style');
        const visualColor = style && style.fill;
        const opacity = style && style.opacity;

        let itemStyle = getItemStyleModel(dataIndexInside, NORMAL).getItemStyle();
        visualColor != null && (itemStyle.fill = visualColor);
        opacity != null && (itemStyle.opacity = opacity);

        const opt = {inheritColor: isString(visualColor) ? visualColor : tokens.color.neutral99};
        const labelModel = getLabelModel(dataIndexInside, NORMAL);
        // Now that the feature of "auto adjust text fill/stroke" has been migrated to zrender
        // since ec5, we should set `isAttached` as `false` here and make compat in
        // `convertToEC4StyleForCustomSerise`.
        const textStyle = labelStyleHelper.createTextStyle(labelModel, null, opt, false, true);
        textStyle.text = labelModel.getShallow('show')
            ? retrieve2(
                customSeries.getFormattedLabel(dataIndexInside, NORMAL),
                getDefaultLabel(data, dataIndexInside)
            )
            : null;
        const textConfig = labelStyleHelper.createTextConfig(labelModel, opt, false);

        preFetchFromExtra(userProps, itemStyle);
        itemStyle = convertToEC4StyleForCustomSerise(itemStyle, textStyle, textConfig);

        userProps && applyUserPropsAfter(itemStyle, userProps);
        (itemStyle as LegacyStyleProps).legacy = true;

        return itemStyle;
    }

    /**
     * @deprecated The reason see `api.style()`