From 7a8f04302ffbd79612ab98d60e5004bd24da24d5 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Fri, 1 May 2020 03:21:45 +0200
Subject: [PATCH] Use client size for calculating column sizes, not the full
 size

We need account for the place taken by the vertical scrollbar, if any.
---
 src/generic/datavgen.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/generic/datavgen.cpp b/src/generic/datavgen.cpp
index b8249e9fbf..2f672c664f 100644
--- a/src/generic/datavgen.cpp
+++ b/src/generic/datavgen.cpp
@@ -5075,7 +5075,7 @@ void wxDataViewMainWindow::UpdateColumnSizes()
 
     wxDataViewCtrl *owner = GetOwner();
 
-    int fullWinWidth = GetSize().x;
+    int fullWinWidth = GetClientSize().x;
 
     // Find the last shown column: we shouldn't bother to resize the columns
     // that are hidden anyhow.