Update padding

view-mode/function/overlaySCurve.js

@@ -121,9 +121,26 @@ function getProgressLine(){
 function getScalePaddings(){
 	var scale = gantt.getScale();
 	var dataRange = gantt.getSubtaskDates();
+	let minDate = new Date();
+	let maxDate = new Date();
+
+	gantt.eachTask(function(task){
+        let plannedEarlier = task.planned_start < task.start_date;
+        let plannedLater = task.planned_end > task.end_date;
+
+        if (plannedEarlier) {
+            minDate = new Date(Math.min(minDate.getTime(), task.planned_start.getTime()));
+        } else {
+            minDate = new Date(Math.min(minDate.getTime(), task.start_date.getTime()));
+        }
+
+        if (plannedLater) {
+            maxDate = new Date(Math.max(maxDate.getTime(), task.planned_end.getTime()));
+        } else {
+            maxDate = new Date(Math.max(maxDate.getTime(), task.end_date.getTime()));
+        }
+	})
 
-	var chartScale = getChartScaleRange();
-	var newWidth = scale.col_width;
 	var padding = {
 		left:0,
 		right:0
@@ -132,8 +149,8 @@ function getScalePaddings(){
 	if(dataRange.start_date){
 		var yScaleLabelsWidth = 48;
 		// fine tune values in order to align chart with the scale range
-		padding.left = gantt.posFromDate(dataRange.start_date) - yScaleLabelsWidth;
+		padding.left = gantt.posFromDate(minDate) - yScaleLabelsWidth;
-		padding.right = scale.full_width - gantt.posFromDate(dataRange.end_date) - yScaleLabelsWidth;
+		padding.right = scale.full_width - gantt.posFromDate(maxDate) - yScaleLabelsWidth;
 		padding.top = gantt.config.row_height - 12;
 		padding.bottom = gantt.config.row_height - 12;
 	}