From 0446382e82ef1d81613bcb09d473f71d2cb3401c Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Wed, 16 May 2018 15:23:00 +0200
Subject: [PATCH] Fix position of popup menus in wxGenericListCtrl

The position was off by the header height due to a missing translation
between wxGenericListCtrl and wxListMainWindow, in which the menu is
actually shown, coordinates.

Closes #18133.
---
 src/generic/listctrl.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/generic/listctrl.cpp b/src/generic/listctrl.cpp
index 1ea2442ffa..73773de48c 100644
--- a/src/generic/listctrl.cpp
+++ b/src/generic/listctrl.cpp
@@ -5467,6 +5467,12 @@ wxColour wxGenericListCtrl::GetForegroundColour() const
 bool wxGenericListCtrl::DoPopupMenu( wxMenu *menu, int x, int y )
 {
 #if wxUSE_MENUS
+    // Coordinates here are given in this control coordinates system, but
+    // PopupMenu() wants them in the coordinates system of the window it's
+    // called on, so transform them.
+    ClientToScreen(&x, &y);
+    m_mainWin->ScreenToClient(&x, &y);
+
     return m_mainWin->PopupMenu( menu, x, y );
 #else
     return false;