From 6cc021bcaf4ff40d18bec5bb6d6ebca64de1cc8e Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Fri, 25 Aug 2023 17:35:29 -0400
Subject: [PATCH] when updating the highlight also update cursor position

---
 tools/lammps-gui/codeeditor.cpp | 13 ++++++++++++-
 tools/lammps-gui/lammpsgui.cpp  |  2 +-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/tools/lammps-gui/codeeditor.cpp b/tools/lammps-gui/codeeditor.cpp
index ba50a1db1d..6acba416f2 100644
--- a/tools/lammps-gui/codeeditor.cpp
+++ b/tools/lammps-gui/codeeditor.cpp
@@ -96,7 +96,18 @@ void CodeEditor::setFont(const QFont &newfont)
 
 void CodeEditor::setHighlight(int block)
 {
-    highlight = block;
+    highlight   = block;
+
+    // also move cursor to current position
+    auto cursor = textCursor();
+    int moves   = block - cursor.blockNumber();
+    if (moves < 0)
+        cursor.movePosition(QTextCursor::Up, QTextCursor::MoveAnchor, -moves);
+    else
+        cursor.movePosition(QTextCursor::Down, QTextCursor::MoveAnchor, moves);
+    setTextCursor(cursor);
+
+    // update graphics
     repaint();
 }
 
diff --git a/tools/lammps-gui/lammpsgui.cpp b/tools/lammps-gui/lammpsgui.cpp
index 91a8fe0053..d0ab79fdea 100644
--- a/tools/lammps-gui/lammpsgui.cpp
+++ b/tools/lammps-gui/lammpsgui.cpp
@@ -922,7 +922,7 @@ void LammpsGui::do_run(bool use_buffer)
 
     logupdater = new QTimer(this);
     connect(logupdater, &QTimer::timeout, this, &LammpsGui::logupdate);
-    logupdater->start(50);
+    logupdater->start(100);
 }
 
 void LammpsGui::render_image()