From 7f49a6e942a8c3b7b15da8e0736960f4bcb44409 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9my=20Dornier?= <remy.dornier@epfl.ch>
Date: Fri, 27 Oct 2023 15:39:11 +0200
Subject: [PATCH] Enable time index offset

---
 src/js/models/panel_model.js | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/js/models/panel_model.js b/src/js/models/panel_model.js
index 7e3c02a67..21db57e90 100644
--- a/src/js/models/panel_model.js
+++ b/src/js/models/panel_model.js
@@ -294,9 +294,11 @@
                 deltaT = this.get('deltaT')[theT] || 0,
                 text = "", h, m, s;
 
+            var shiftIdx;
             if (ref_idx) {
-                var shift = this.get('deltaT')[parseInt(ref_idx)-1];
-                deltaT = shift==null ? deltaT : deltaT-shift;
+                shiftIdx = parseInt(ref_idx)
+                var shift = this.get('deltaT')[shiftIdx - 1];
+                deltaT = shift==null ? deltaT : deltaT - shift;
             }
             var isNegative = (deltaT < 0);
             deltaT = Math.abs(deltaT);
@@ -304,7 +306,9 @@
             var padlen = dec_prec>0 ? dec_prec+3 : 2;
             if (format === "index") {
                 isNegative = false;
-                text = "" + (theT + 1);
+                if(!isNaN(shiftIdx) && !(this.get('deltaT')[shiftIdx - 1] == null))
+                    text = "" + (theT - shiftIdx + 1);
+                else text = "" + (theT + 1);
             } else if (['milliseconds', 'ms'].includes(format)) {
                 text = (deltaT*1000).toFixed(dec_prec) + " ms";
             } else if (['seconds', 'secs', 's'].includes(format)) {