nagix/chartjs-plugin-style

'use strict';

import Chart from 'chart.js';
import styleHelpers from '../helpers/helpers.style';

var helpers = Chart.helpers;

// For Chart.js 2.7.3 backward compatibility
var isPointInArea = helpers.canvas._isPointInArea || function(point, area) {
    var epsilon = 1e-6;

    return point.x > area.left - epsilon && point.x < area.right + epsilon &&
        point.y > area.top - epsilon && point.y < area.bottom + epsilon;
};

var Point = Chart.elements.Point;

export default Point.extend({

    draw: function(chartArea) {
        var me = this;
        var args = arguments;
        var chart = me._chart;
        var vm = me._view;

        var drawCallback = function() {
            Point.prototype.draw.apply(me, args);
        };

        if (vm.skip || chartArea !== undefined && !isPointInArea(vm, chartArea)) {
            return;
        }

        styleHelpers.drawShadow(chart, vm, drawCallback, true);

        if (styleHelpers.opaque(vm.backgroundColor)) {
            styleHelpers.drawBackground(vm, drawCallback);
            styleHelpers.drawBackgroundOverlay(chart, vm, drawCallback);
            styleHelpers.drawBevel(chart, vm, drawCallback);
        }

        styleHelpers.drawInnerGlow(chart, vm, drawCallback);
        styleHelpers.drawOuterGlow(chart, vm, drawCallback);

        styleHelpers.drawBorder(vm, drawCallback);
    }
});