From 3a7efdfb8cff7ed7d48c550bbce570325bdad0f9 Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Thu, 24 Aug 2023 21:25:14 -0400
Subject: [PATCH] implement setFont() method that sets the font for the entire
 editor window

---
 tools/lammps-gui/codeeditor.cpp | 6 ++++++
 tools/lammps-gui/codeeditor.h   | 2 ++
 tools/lammps-gui/lammpsgui.cpp  | 2 +-
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/tools/lammps-gui/codeeditor.cpp b/tools/lammps-gui/codeeditor.cpp
index 6437f5cfa1..a1e120517d 100644
--- a/tools/lammps-gui/codeeditor.cpp
+++ b/tools/lammps-gui/codeeditor.cpp
@@ -88,6 +88,12 @@ int CodeEditor::lineNumberAreaWidth()
     return space;
 }
 
+void CodeEditor::setFont(const QFont &newfont)
+{
+    lineNumberArea->setFont(newfont);
+    document()->setDefaultFont(newfont);
+}
+
 void CodeEditor::updateLineNumberAreaWidth(int /* newBlockCount */)
 {
     setViewportMargins(lineNumberAreaWidth(), 0, 0, 0);
diff --git a/tools/lammps-gui/codeeditor.h b/tools/lammps-gui/codeeditor.h
index 57cdd8576b..a6c49ed9db 100644
--- a/tools/lammps-gui/codeeditor.h
+++ b/tools/lammps-gui/codeeditor.h
@@ -14,6 +14,7 @@
 #ifndef CODEEDITOR_H
 #define CODEEDITOR_H
 
+#include <QFont>
 #include <QMap>
 #include <QPlainTextEdit>
 #include <QShortcut>
@@ -27,6 +28,7 @@ public:
 
     void lineNumberAreaPaintEvent(QPaintEvent *event);
     int lineNumberAreaWidth();
+    void setFont(const QFont &newfont);
 
 protected:
     void resizeEvent(QResizeEvent *event) override;
diff --git a/tools/lammps-gui/lammpsgui.cpp b/tools/lammps-gui/lammpsgui.cpp
index 68b29d4830..5f1f1e1dda 100644
--- a/tools/lammps-gui/lammpsgui.cpp
+++ b/tools/lammps-gui/lammpsgui.cpp
@@ -189,7 +189,7 @@ LammpsGui::LammpsGui(QWidget *parent, const char *filename) :
     text_font.setStyleHint(QFont::Monospace, QFont::PreferOutline);
     text_font.fromString(settings.value("textfont", text_font.toString()).toString());
     settings.setValue("textfont", text_font.toString());
-    ui->textEdit->document()->setDefaultFont(text_font);
+    ui->textEdit->setFont(text_font);
     ui->textEdit->setMinimumSize(600, 400);
 
     update_recents();