From 565e7914f876924ac513f56167441e4620753c1d Mon Sep 17 00:00:00 2001
From: Roy Qu <royqh1979@gmail.com>
Date: Tue, 23 Apr 2024 17:51:30 +0800
Subject: [PATCH] fix: current top line changed after change font size.

---
 libs/qsynedit/qsynedit/qsynedit.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libs/qsynedit/qsynedit/qsynedit.cpp b/libs/qsynedit/qsynedit/qsynedit.cpp
index 1bbb7d55..a6ed8e45 100644
--- a/libs/qsynedit/qsynedit/qsynedit.cpp
+++ b/libs/qsynedit/qsynedit/qsynedit.cpp
@@ -3230,9 +3230,12 @@ void QSynEdit::recalcCharExtent()
     }
     mTextHeight *= mLineSpacingFactor;
 
-    setTopPos(currentTopRow * mTextHeight);
-    setLeftPos(currentLeftCol * mCharWidth);
     onSizeOrFontChanged();
+    int newTopPos =  currentTopRow * mTextHeight;
+    setTopPos(newTopPos);
+    if (newTopPos!=mTopPos)
+        mTopPos = newTopPos;
+    setLeftPos(currentLeftCol * mCharWidth);
 }
 
 QString QSynEdit::expandAtWideGlyphs(const QString &S)