From 77ec41a820518edd67967f4b9c126347b938d852 Mon Sep 17 00:00:00 2001
From: "Veronica K. B. Olsen" <1619840+vkbo@users.noreply.github.com>
Date: Sun, 11 Oct 2020 21:43:26 +0200
Subject: [PATCH] Make sure scroll past end margin cannot be negative

---
 nw/gui/doceditor.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nw/gui/doceditor.py b/nw/gui/doceditor.py
index 99e86764..9cbe1abb 100644
--- a/nw/gui/doceditor.py
+++ b/nw/gui/doceditor.py
@@ -440,7 +440,8 @@ class GuiDocEditor(QTextEdit):
 
         if self.mainConf.scrollPastEnd:
             docFrame = self.qDocument.rootFrame().frameFormat()
-            docFrame.setBottomMargin(wH - uM - lM - 5*self.theTheme.fontPixelSize)
+            docMargin = wH - uM - lM - 5*self.theTheme.fontPixelSize
+            docFrame.setBottomMargin(max(0, docMargin))
             self.qDocument.rootFrame().setFrameFormat(docFrame)
 
         return