Fix timeseries bars tooltip

ui-ngx/src/app/modules/home/components/widget/lib/flot-widget.ts

@@ -1289,6 +1289,7 @@ export class TbFlot {
     let value: any;
     let lastValue = 0;
     let minDistanceHistorical: number;
+    let deltaX = 0;
     const results: TbFlotHoverInfo[] = [{
       seriesHover: []
     }];
@@ -1297,6 +1298,13 @@ export class TbFlot {
         seriesHover: []
       });
     }
+    if (this.chartType === 'bar' && this.options.series.bars.align !== 'left') {
+      if (this.options.series.bars.align === 'center') {
+        deltaX = this.options.series.bars.barWidth / 2;
+      } else {
+        deltaX = this.options.series.bars.barWidth;
+      }
+    }
     for (i = 0; i < seriesList.length; i++) {
       series = seriesList[i];
       let posx: number;
@@ -1305,6 +1313,7 @@ export class TbFlot {
       } else {
         posx = pos.x;
       }
+      posx += deltaX;
       hoverIndex = this.findHoverIndexFromData(posx, series);
       if (series.data[hoverIndex] && series.data[hoverIndex][0]) {
         hoverDistance = posx - series.data[hoverIndex][0];