From 2873cb878574de7caa18cd27299d8a050394283a Mon Sep 17 00:00:00 2001
From: Roy Qu <royqh1979@gmail.com>
Date: Sun, 24 Mar 2024 12:21:49 +0800
Subject: [PATCH] ensure top pos aligns with line height after drop

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

diff --git a/libs/qsynedit/qsynedit/qsynedit.cpp b/libs/qsynedit/qsynedit/qsynedit.cpp
index bfb3def7..a1a48be2 100644
--- a/libs/qsynedit/qsynedit/qsynedit.cpp
+++ b/libs/qsynedit/qsynedit/qsynedit.cpp
@@ -6378,6 +6378,11 @@ void QSynEdit::dropEvent(QDropEvent *event)
     endEditing();
     event->acceptProposedAction();
     mDropped = true;
+    if (topPos!=mMouseScrollOldTop) {
+        int offset = topPos % mTextHeight;
+        if (offset!=0)
+            topPos -= offset;
+    }
     setTopPos(topPos);
     setLeftPos(leftPos);
     internalSetCaretXY(coord);