From: Jean-Marc Lasgouttes <lasgouttes@lyx.org>
Date: Fri, 30 Aug 2024 14:56:16 +0000 (+0200)
Subject: Fix update of cursor in tab-delete when there is a selection
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=16be88ca18719a98a555ced268431ca1040658b7;p=lyx.git

Fix update of cursor in tab-delete when there is a selection

The position of the cursor should not be decreased if it is already at
the start of the paragraph. This can lead to a crash when trying to
display the caret.
---

diff --git a/src/Text.cpp b/src/Text.cpp
index 7c0b18cbfd..327e3949ee 100644
--- a/src/Text.cpp
+++ b/src/Text.cpp
@@ -4629,10 +4629,9 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 					int const n = (c == ' ' ? 4 : 1);
 					for (int i = 0; i < n
 						  && !par.empty() && par.getChar(0) == c; ++i) {
-						if (cur.pit() == pit)
+						if (cur.pit() == pit && cur.pos() > 0)
 							cur.posBackward();
-						if (cur.realAnchor().pit() == pit
-							  && cur.realAnchor().pos() > 0 )
+						if (cur.realAnchor().pit() == pit && cur.realAnchor().pos() > 0)
 							cur.realAnchor().backwardPos();
 						par.eraseChar(0, tc);
 					}