From 38d40365f8d69cc6e60842a71011a184a8fca37e Mon Sep 17 00:00:00 2001
From: DieSkaarj <40402624+DieSkaarj@users.noreply.github.com>
Date: Sun, 6 Nov 2022 17:34:42 +0000
Subject: Check for child visibility in Fl_Scroll (#432)

Calculate scroll area only according to visible children.

Note: "visible" means in this context: "not hidden" - as opposed
to being invisible because the widget doesn't have a background
and a label.
---
 src/Fl_Scroll.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/Fl_Scroll.cxx b/src/Fl_Scroll.cxx
index ae7a76e54..f218915a8 100644
--- a/src/Fl_Scroll.cxx
+++ b/src/Fl_Scroll.cxx
@@ -206,7 +206,7 @@ void Fl_Scroll::recalc_scrollbars(ScrollInfo &si) const {
   Fl_Widget*const* a = array();
   for (int i=children(); i--;) {
     Fl_Widget* o = *a++;
-    if ( o==&scrollbar || o==&hscrollbar ) continue;
+    if ( o==&scrollbar || o==&hscrollbar || o->visible()==0 ) continue;
     if ( first ) {
         first = 0;
         si.child.l = o->x();
-- 
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