From ce903da7983be5dbb658f86ba89b5664413ce405 Mon Sep 17 00:00:00 2001
From: Maarten <MaartenBent@users.noreply.github.com>
Date: Fri, 8 Jun 2018 19:17:22 +0200
Subject: [PATCH] Fix glitch in AUI frame with standard wxToolbar

When the height of the AUI toolbar pane is higher than the wxToolbar, the extra
area shows a glitch. This happens because the paint handler never draws on this
area. Clearing the DC of the frame with the AUI background colour fixes this.

See https://github.com/wxWidgets/wxWidgets/pull/829

Closes #18138
---
 src/aui/framemanager.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/aui/framemanager.cpp b/src/aui/framemanager.cpp
index 8f3c89605d..ab34ce3035 100644
--- a/src/aui/framemanager.cpp
+++ b/src/aui/framemanager.cpp
@@ -3935,6 +3935,10 @@ void wxAuiManager::Repaint(wxDC* dc)
 void wxAuiManager::OnPaint(wxPaintEvent& WXUNUSED(event))
 {
     wxPaintDC dc(m_frame);
+
+    dc.SetBackground(GetArtProvider()->GetColor(wxAUI_DOCKART_BACKGROUND_COLOUR));
+    dc.Clear();
+
     Repaint(&dc);
 }