From 374a8e5c7f5b472e7711ce4ed79693ead33aae46 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=A1clav=20Slav=C3=ADk?= <vslavik@fastmail.fm>
Date: Sun, 30 Jun 2002 22:15:10 +0000
Subject: [PATCH] fixed hidden root expansion in extreme usage case

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15984 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/generic/treectlg.cpp | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/generic/treectlg.cpp b/src/generic/treectlg.cpp
index 6d56dc596d..35f2d96708 100644
--- a/src/generic/treectlg.cpp
+++ b/src/generic/treectlg.cpp
@@ -835,9 +835,17 @@ size_t wxGenericTreeCtrl::GetChildrenCount(const wxTreeItemId& item, bool recurs
 
 void wxGenericTreeCtrl::SetWindowStyle(const long styles)
 {
-        // right now, just sets the styles.  Eventually, we may
-        // want to update the inherited styles, but right now
-        // none of the parents has updatable styles
+    if (!HasFlag(wxTR_HIDE_ROOT) && (styles & wxTR_HIDE_ROOT))
+    {
+        // if we will hide the root, make sure children are visible
+        m_anchor->SetHasPlus();
+        m_anchor->Expand();
+        CalculatePositions();
+    }
+
+    // right now, just sets the styles.  Eventually, we may
+    // want to update the inherited styles, but right now
+    // none of the parents has updatable styles
     m_windowStyle = styles;
     m_dirty = TRUE;
 }