import { Tooltip, tooltipObject } from '../Tooltip';

export const drawBarChartHighLighter = function (this: Tooltip, t: tooltipObject) {
    const { ctx, step, coord, vp } = t;

    ctx.strokeStyle = this._options.lineColor;
    ctx.lineWidth = this._options.lineWidth;
    ctx.fillStyle = this._options.brushColor;

    const finalStep = step - this._options.mainSize;
    
    ctx.beginPath();
    ctx.lineTo(coord.x - finalStep*0.5, vp.zeroY);
    ctx.lineTo(coord.x - finalStep*0.5, coord.y);
    ctx.lineTo(coord.x + finalStep*0.5, coord.y);
    ctx.lineTo(coord.x + finalStep*0.5, vp.zeroY);
    ctx.closePath();
    ctx.fill();
}