From 74f57bfa1959686143a3851069bbee6588b2ea35 Mon Sep 17 00:00:00 2001
From: Sergey Linev <S.Linev@gsi.de>
Date: Fri, 24 May 2024 12:23:45 +0200
Subject: [PATCH] Build with TH1 y range selection

---
 build/jsroot.js | 7 ++++++-
 changes.md      | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/build/jsroot.js b/build/jsroot.js
index 73f2b5ac2..ab56c11f3 100644
--- a/build/jsroot.js
+++ b/build/jsroot.js
@@ -80782,7 +80782,7 @@ let TH1Painter$2 = class TH1Painter extends THistPainter {
       }
 
       // final adjustment like in THistPainter.cxx line 7309
-      if (!this._exact_y_range && !pad_logy) {
+      if (!this._exact_y_range && !this._set_y_range && !pad_logy) {
          if ((this.options.BaseLine !== false) && (this.ymin >= 0))
             this.ymin = 0;
          else {
@@ -80806,17 +80806,22 @@ let TH1Painter$2 = class TH1Painter extends THistPainter {
          }
       }
 
+      this._set_y_range = false;
+
       if ((hmin !== kNoZoom) && (hmax !== kNoZoom) && !this.draw_content &&
           ((this.ymin === this.ymax) || (this.ymin > hmin) || (this.ymax < hmax))) {
          this.ymin = hmin;
          this.ymax = hmax;
+         this._set_y_range = true;
       } else {
          if (hmin !== kNoZoom) {
+            this._set_y_range = true;
             if (hmin < this.ymin)
                this.ymin = hmin;
              set_zoom = true;
          }
          if (hmax !== kNoZoom) {
+            this._set_y_range = true;
             if (hmax > this.ymax)
                this.ymax = hmax;
             set_zoom = true;
diff --git a/changes.md b/changes.md
index 83afbd490..391c00ebe 100644
--- a/changes.md
+++ b/changes.md
@@ -2,6 +2,7 @@
 
 ## Changes in dev
 1. Fix - properly select TF1 range after zooming
+2. Fix - TH1 y-range selection
 
 
 ## Changes in 7.7.0