From 3c9ac38913841683e5828b41eb8d53afb246cc72 Mon Sep 17 00:00:00 2001
From: Roy Qu <royqh1979@gmail.com>
Date: Sun, 24 Mar 2024 12:23:58 +0800
Subject: [PATCH] drag&drop tweak

---
 libs/qsynedit/qsynedit/qsynedit.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libs/qsynedit/qsynedit/qsynedit.cpp b/libs/qsynedit/qsynedit/qsynedit.cpp
index a1a48be2..6972db71 100644
--- a/libs/qsynedit/qsynedit/qsynedit.cpp
+++ b/libs/qsynedit/qsynedit/qsynedit.cpp
@@ -6302,6 +6302,14 @@ void QSynEdit::dropEvent(QDropEvent *event)
              && coord>=mDragSelBeginSave && coord<=mDragSelEndSave)
             ) {
         mDocument->deleteAt(mDocument->count()-1);
+        int topPos = mTopPos;
+        if (topPos!=mMouseScrollOldTop) {
+            int offset = topPos % mTextHeight;
+            if (offset!=0)
+                topPos -= offset;
+            setTopPos(topPos);
+            ensureCaretVisible();
+        }
         //do nothing if drag onto itself
         event->acceptProposedAction();
         mDropped = true;