Automated y-axis-title-offset in line chart for varying length of y-axis title? - Javascript highcharts

Javascript examples for highcharts:Line Chart

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Description

Automated y-axis-title-offset in line chart for varying length of y-axis title?

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script> 
      <script type="text/javascript">
txt = "Very important data here but if very long different when short blab blab bla bla";
$(function () {//from w  w w . j  av a  2s. c  o m
    $('#container').highcharts({
        chart: {
            events: {
                load: function () {
                    console.log(this.yAxis[0]);
                    var chart = this,
                        yAxis = chart.yAxis[0],
                        tp = yAxis.tickPositions,
                        firstLabel = yAxis.ticks[tp[0]].label.getBBox().width,
                        lastLabel = yAxis.ticks[tp[tp.length - 1]].label.getBBox().width,
                        bb = yAxis.axisTitle.getBBox();
                    yAxis.update({
                        title: {
                            offset: -bb.width + (firstLabel > lastLabel ? firstLabel : lastLabel)
                        }
                    });
                }
            }
        },
        xAxis: {
            categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
        },
        yAxis: {
            title: {
                text: "Very important data here but if very long different when short blab blab bla bla",
                align: 'high',
                rotation: 0,
                //offset: txt.length * -5.5,
                rotation: 0,
                y: -15
            }
        },
        series: [{
            data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
        }]
    });
});

      </script> 
   </head> 
   <body> 
      <script src="https://code.highcharts.com/highcharts.js"></script> 
      <div id="container" style="height: 400px"></div>  
   </body>
</html>

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