From d9612e3cc713247f8f1e8af10a39fa2c763b588d Mon Sep 17 00:00:00 2001
From: Matthias Melcher <github@matthiasm.com>
Date: Mon, 29 Jan 2024 11:43:34 +0100
Subject: RFC: Different approach to Editor tutorial (see #189) (#883)

Update test/editor code and tutorial (#189, #883)

Different, sequential approach to Editor tutorial
Co-authored-by: Albrecht Schlosser <albrechts.fltk@online.de>
---
 src/Fl_Text_Display.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/Fl_Text_Display.cxx')

diff --git a/src/Fl_Text_Display.cxx b/src/Fl_Text_Display.cxx
index ff4649ee9..c91c98a79 100644
--- a/src/Fl_Text_Display.cxx
+++ b/src/Fl_Text_Display.cxx
@@ -448,7 +448,8 @@ void Fl_Text_Display::highlight_data(Fl_Text_Buffer *styleBuffer,
   mHighlightCBArg = cbArg;
   mColumnScale = 0;
 
-  mStyleBuffer->canUndo(0);
+  if (mStyleBuffer)
+    mStyleBuffer->canUndo(0);
   damage(FL_DAMAGE_EXPOSE);
 }
 
-- 
cgit v1.2.3