From 16bde19fafb6bf677f75a47482806013107dd86c Mon Sep 17 00:00:00 2001
From: rumtid <liwei.jiang@seafile.com>
Date: Tue, 27 Sep 2022 14:12:40 +0800
Subject: [PATCH] Fix dpi scaling issues (#1424)

---
 src/filebrowser/file-browser-dialog.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/filebrowser/file-browser-dialog.cpp b/src/filebrowser/file-browser-dialog.cpp
index 17bfb660b..d725fea4f 100644
--- a/src/filebrowser/file-browser-dialog.cpp
+++ b/src/filebrowser/file-browser-dialog.cpp
@@ -57,7 +57,20 @@ const int kSearchBarWidth = 250;
 
 void openFile(const QString& path)
 {
+#if defined(Q_OS_WIN32)
+    // The QT_SCREEN_SCALE_FACTORS environment variable will be passed to the
+    // application invoked from here, which may cause scaling problems.
+    // So we temporary reset that and restore back.
+    const char *factors = g_getenv("QT_SCREEN_SCALE_FACTORS");
+    g_setenv("QT_SCREEN_SCALE_FACTORS", "1", 1);
+#endif
+
     ::openInNativeExtension(path) || ::showInGraphicalShell(path);
+
+#if defined(Q_OS_WIN32)
+    g_setenv("QT_SCREEN_SCALE_FACTORS", factors, 1);
+#endif
+
 #ifdef Q_OS_MAC
     MacImageFilesWorkAround::instance()->fileOpened(path);
 #endif