From bc537300919926d185cb314921dcb3acea01ff0e Mon Sep 17 00:00:00 2001
From: Twan van Laarhoven <twanvl@gmail.com>
Date: Tue, 12 May 2020 02:07:42 +0200
Subject: [PATCH] Update scrollbar on resize (and on startup)

---
 src/gui/set/console_panel.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gui/set/console_panel.cpp b/src/gui/set/console_panel.cpp
index f8f8c784..a03062b4 100644
--- a/src/gui/set/console_panel.cpp
+++ b/src/gui/set/console_panel.cpp
@@ -187,6 +187,10 @@ class MessageCtrl : public wxPanel {
   void update_scrollbar() {
     int screen_height = GetClientSize().y;
     int total_height = messages.empty() ? 0 : messages.back()->bottom();
+    // update view_start to keep messages in view
+    int bottom = total_height - GetClientSize().y;
+    view_start = min(bottom, view_start);
+    view_start = max(0, view_start);
     SetScrollbar(wxVERTICAL, view_start, screen_height, total_height);
   }