From e68e3b516eb38b7e95385d6be8af22a02b0b38d5 Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Mon, 18 Jul 2022 18:58:40 +0800
Subject: [PATCH] Improve performance of "filesystem line edit" widgets

Also prevent unnecessary querying on the filesystem by omitting
calling setRootPath().
---
 src/gui/fspathedit_p.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/gui/fspathedit_p.cpp b/src/gui/fspathedit_p.cpp
index d11469dfa..3c58c2d6e 100644
--- a/src/gui/fspathedit_p.cpp
+++ b/src/gui/fspathedit_p.cpp
@@ -208,8 +208,11 @@ Private::FileLineEdit::FileLineEdit(QWidget *parent)
     , m_browseAction {nullptr}
     , m_warningAction {nullptr}
 {
-    m_completerModel->setRootPath({});
+    m_iconProvider.setOptions(QFileIconProvider::DontUseCustomDirectoryIcons);
+
     m_completerModel->setIconProvider(&m_iconProvider);
+    m_completerModel->setOptions(QFileSystemModel::DontWatchForChanges);
+
     m_completer->setModel(m_completerModel);
     m_completer->setCompletionMode(QCompleter::PopupCompletion);
     setCompleter(m_completer);